Everyday Birds – The Blue Tit

29 Sunday Jan 2017

Posted by theresagreen in bird behaviour, bird folklore, birds of Wales, Nature of Wales, woodland birds

Tags

Blue tit, Blue tits taking milk from bottles, folk names for Blue tit, garden birds, melanism in Blue tit, Titw Tomos Las

Although blessed with visitors from a good range of species, Blue tits are without doubt the mainstay of my window birdwatching and have given me hours of viewing pleasure. There are few moments in the day when there are not at least one or two to see and at certain times there can be a good few more; counting them accurately is tricky, they’re too quick and mobile. I admit I hadn’t noticed any difference in the numbers of birds I’ve been seeing this year compared to previous years, so I was surprised to learn that according to BTO records, on a national scale there are significantly less of them this winter.

Throughout the UK Blue tits have always ranked amongst the most numerous of our garden feeder visitors, but last November (2016) BTO Garden BirdWatchers reported the lowest numbers of Blue Tits in gardens since 2003. They say:

” The explanation for our missing birds can be found by looking back to the early summer. The wet weather across the breeding season, particularly in June, would have made it difficult for the adults to feed themselves and their chicks. Normally we would expect to see large numbers of newly fledged young come into gardens to seek food, but this year BTO Garden BirdWatch results show the lowest numbers of Blue Tits in August for eight years. This indicates that fewer young birds survived than usual this year and these findings are supported by the preliminary results from the BTO Nest Record Scheme (NRS) and Constant Effort Sites Scheme (CES) which found that Blue Tits had their worst breeding season on record, thought to be due to a lack of young birds this year.”

All the more reason to appreciate these endearing little birds and continue to help them out where we can.

English name Blue tit Scientific name Cyanistes caeruleus (formerly Parus caeruleus), Linnaeus, 1758; Other names Eurasian Blue tit, European Blue tit Welsh Titw Tomos Las Conservation Status: UK: GREEN

Blue tits are tiny birds, measuring 12 cm (5″- 6″) long and weighing in at just 11 grams.

Blue tits are small. acrobatic birds with a gregarious nature, they have short legs and a sturdy bill which suits their omnivorous diet of mostly insects and spiders in the summer and a wide range of fruit and berries in autumn and winter.

The wings and tail feathers are bright blue and the back is olive-green. The underparts are yellow with a greyish-black stripe running down the belly which is usually narrow, but can vary. The cap, or crown, is a stunning bright blue. The face is a clean bright white accented by a narrow black stripe that runs through the eyes, there is a black chinstrap and a small black ‘bib’ under the bill. Males and females are the same, but males show brighter blue than females. Like all birds, Blue Tits can see ultra-violet light: the bright blue feathers on the front of their heads glows brightly under UV light and it is the quality of this feature that is thought to be the deciding factor in the females’ choice of partner.

It may seem to us that only a dozen or so Blue Tits use our garden feeding stations in the winter, but the truth is there could easily be many times this number passing through during the course of a single day. Blue Tits are largely sedentary in their habits, but studies of the local movements of British and Irish Blue Tits have shown that birds range over an area and move around in small flocks, or feeding parties, that often include other tit species, Goldcrest, Nuthatch, Treecreeper and even the occasional wintering Chiffchaff.

A Stranger Passing through

As one Blue tit looks pretty much like another, it’s almost impossible to tell who is who, so spotting through-visitors is tricky. But earlier this week I happened to spot an individual that looked ‘different’ to the ones I usually see.

Looking at him through the camera lens I could see he had an unusual dark patch of feathers above his beak and between his eyes and also a band of darker feathers around the top of the breast, giving it a slightly dirty appearance. This is the first Blue tit I have seen with darkened plumage, but the condition, known as melanism is apparently not that uncommon, although more common in the related Great tit. He didn’t stay for long as he was chased away by other Blue Tits. He must have stood out to them as looking ‘different’. (The BTO keep records of birds reported with abnormal plumage shown here.)

Acrobats

For the past couple of weeks I have been entertained by their acrobatic prowess as the small overhanging tree-of-unknown-species in front of my window has buds that are beginning to swell. This is their tree of choice in which to wait their turn for the birdfeeders down at ground level, to which they return to eat their snatched prize. Now they often have quick forage around the twiggy branches seeking out any lurking insects or larvae that may be hiding in them.

Blue tits are brilliant acrobats and can hang upside down from branches to search underneath them for insects. This agility and their light weight also enables them to search to the very tips of twigs.

The males are singing too – I photographed my first singer of this year on January 23rd.

Blue tits and us

The Blue tit and other tit species were long known as the Titmice, a name taken from Middle English (Icelandic) ttr = small, and mouse – in Old English mase=small bird. ‘Tit’ referred to any small object or creature and is of pre-7th century Norse origin. The first known use of ‘titmouse’ has been dated back to the 14th century and ‘Tom titmouse’ to around the 17th century. ‘Titmouse’ was used for this genus by most old authors, but Yarrell in his first edition shortened the name to ‘Tit’ and his example has been followed by many later authors.

The sheer number and variety of common and local variations of names bestowed upon them is a good indication that Blue tits have long featured in the lives of man. There is Blue Cap, Blue Bonnet (Shropshire & Scotland); Blue Ox-eye, Blue Spick (N Devon); Nun; Pedn-play, tree babbler (Cornwall); Pinchem (Bedfordshire); Tinnock, Yaup; Bee Bird (Hampshire); Willow Biter, Billy Biter (Midlands); Pickcheese (Norfolk); Tom Tit, Hickmall, Heckymal; Titmal (West Country.

Blue tits excel at problem-solving. Faced with intelligence test apparatus contrived by researchers, modern-day Blue tits have learnt to pull out a series of pegs or open matchbox ‘drawers’ to get at food. They have adapted readily to man and have been seizing opportunities to benefit from our lifestyles and habits for hundreds of years; sometimes this has worked out well for them but sometimes their opportunism has put them in harm’s way.

In the seminal account of English nature, The Natural History of Selbourne, which was first published in 1788, Gilbert White records his observations on the tactics local birds used to survive (or in some cases not) during harsh winters:-

“The blue titmouse, or nun, is a great frequenter of houses, and a general devourer. Beside insects, it is very fond of flesh; for it frequently picks bones on dung hills. It is a vast admirer of suet, and haunts butcher’s shops. When a boy, I have known twenty in a morning caught with snap mousetraps, baited with tallow or suet. It will also pick holes in apples left on the ground, and be well entertained with the seeds on the head of a sunflower. The blue, marsh and great titmice will, in very severe weather, carry away barley and oat straws from the sides of ricks.”

Friend or foe?

It’s hard to imagine that Blue tits have not always been regarded with fondness and affection by everyone and were actually once thought of as ‘foes’ by many gardeners with fruit orchards. The following is an extract from one of my favourite old nature books, which according to the inscription in the front was given as a birthday gift in 1923. The chapter is entitled ” Attracting Wild Birds to Gardens” and written by Oliver G.Pike FZS, FRPS who was clearly already spotting the signs that our wildlife was in need of our support.

“I have watched the Blue Tit and its mate busy on one of my apple trees in the month of April; they were carefully searching the branches for buds which contained insects, and these were quickly destroyed – that is, both bud and insect. They seemed to be doing a lot of harm, but I allowed them to continue, and later on in the year that same tree had a fine crop of excellent apples. So many gardeners see a bird destroying buds and immediately jump to the conclusion that it is a pest and ought to be destroyed. I knew one gardener who in the course of one season trapped and destroyed over fifty Blue Tits. He quite overlooked the fact that by doing this he was allowing for the increase of 100s of 1,000s of insects which would do far more harm to the crops. One pair of Blue Tits which succeed in bringing up their family of, say ten young, will during the period of feeding them account for not less than 10,000 insects, the majority of which are very injurious to many garden crops and flowers, and every one of these will be captured within 100 yards of the nest.”

The successful breeding of chicks is dependent on sufficient supply of green caterpillars as well as satisfactory weather. Breeding seasons may be affected badly if the weather is cold and wet between May and July, particularly if this coincides with the emergence of the caterpillars on which the nestlings are fed.

Infamous behaviour

But Blue tits are perhaps most well known, amongst our older generations at least, for raiding milk bottles. It was first noticed in Southampton in the late 1920s that the local Blue tits had somehow learnt to remove the caps of milk bottles that had been delivered by the milkman each morning. The birds pierced and tore the lid, sometimes removing it completely, then helped themselves to the rich cream that had floated to the top.

Even though blue tits rarely travel farther than a few kilometres from where they’re born, they learned this behaviour from each other by watching their neighbours. Thus, by 1935, the Blue tits living in London were regularly stealing cream, too. The behaviour soon radiated outwards and became familiar nationwide to anyone that had milk delivered to their doorsteps. I’m sure if the delivery service was still available, the cheeky little birds would be helping themselves to this day, they certainly were still taking mine back in the late 1990s/early 2000s. It had to be milk with cream that rose to the top of the bottle though; they can’t digest milk, so the skimmed stuff is no good!

The Redwing

18 Wednesday Jan 2017

Posted by theresagreen in bird behaviour, birds of Wales, Bryn Euryn Nature Reserve, Nature, Nature of Wales, North Wales

≈ 14 Comments

Tags

Coch Dan-aden, grey squirrel, migrant birds, overwintering birds, redwing, Turdus ileacus

For a few magical days earlier this month I enjoyed the privilege of close sightings of Redwings as they travelled around our local woodland foraging for food. Special sightings indeed, and better still I didn’t even need to leave my flat: all but one of the following photographs were taken from my kitchen window.

December 31st 2016

09:10 Thrilled to see Redwings this morning – several flew through the cover of the trees and shrubbery behind the building, with one pausing briefly in view of the kitchen window. There was a flurry of bird activity around that time; they were preceded by a mixed group of small birds, including Long-tailed, Great & Blue tits and seemed to have a variety of blackbirds travelling with them, so may have been a thrush feeding party following a tit feeding. The light was poor and I only managed to get one not-so-good photograph, but at least it is a record of the sighting.

English name: Redwing Scientific name: Turdus ileacus Welsh: Coch Dan-aden Status in the UK: RED Redwings are red-listed in the UK as although the majority are autumn-winter residents, we have a very small breeding population, restricted in range to the northern third of Scotland.

Other local names: Swinepipe, Wind Thrush Scientific name from: Latin: turdus=a thrush and Latin: iliacus=of the flanks (from ile=flank)

Redwings are Autumn-Winter residents of the UK and the smallest and daintiest of our thrushes. Smaller than the Song thrush, they are often shy, but a close view reveals a prominent whitish supercilium (eye stripe), warm rust red patches on the flanks and under the wings and cool grey-brown upperparts. Males and females are alike.

January 2nd

This was the day of my encounter with the flock during my walk in the woods, already described in the previous post. There were blackbirds with them then too and I went on to see the mixed small-bird feeding party just minutes later.

The Redwing’s diet is mainly composed of invertebrates, supplemented with berries in autumn and winter. Wintering Redwings may be seen together with Fieldfares foraging in open fields, but they also feed with other thrushes in grassy paddocks or in woodland. Visits to gardens may be brief and are usually prompted by harsh weather.

January 5th

A frost last night left the ground hard and sparkling white this morning, and it remained cold for much of the day despite the bright sunshine. The hard ground may have driven the Redwings to seek easier food sources. This was brilliant for me as from early morning a small flock of them arrived intermittently throughout the day to pick at ripening ivy berries. So once again from my window I had a succession of fairly close-up views of them, although most of the time they were at least partially hidden behind tree twigs or within ivy foliage.

The majority of Redwings arrive into the UK during September and October as birds cross the North Sea from Scandinavia and Russia. Those arriving into Wales and other western areas are most probably Icelandic birds. Redwings are night-time migrants, and if you are lucky and listen out on dark clear autumn and early winter nights, particularly in the east of the country, you may hear the thin ‘tseep‘ of a flock overhead. As winter arrives Redwings will have largely finished their journeys, settling in the warmer and relatively frost-free areas away from the east coast. They stay with us till March, although hard weather may force them to migrate further, with Scandinavian/Russian birds (the iliacus race) continuing westwards to Ireland or southwards into southern Europe.

Taking a few minutes to rest in the warm sunshine:

“Any attempt to estimate the size of the wintering population of Redwings in Britain and Ireland meets with the same problem as for the Fieldfare: the numbers vary from year to year, and also in the course of a single winter, and major shifts of population may take place in response to weather and feeding conditions. “

( David Snow 1987 – The Atlas of Wintering Birds in Britain and Ireland, edited by Peter Lack)

170105-berc-05-redwing-after-ivy-berries

170105-berc-06-redwing-after-ivy-berries

170105-berc-07-redwing-after-ivy-berries

Another interesting observation I made today was of a Grey squirrel that seemed to be ‘guarding’ the ivy berries. I watched it chase away another squirrel several times, but also noticed it was chasing the Redwings away too, charging at them by running along branches towards them at speed, tail all fluffed out!

January 6th

Milder temperatures may have allowed the Redwings to move on in their constant search for food and today I saw just one bird from my window. It wasn’t in the usual hurry and lingered for a few moments, not moving far and presenting itself to me from various angles so I got some lovely views of different aspects of its plumage and general ‘giz’. They really are beautiful birds.

I saved the best for last.

Wintergreens and Birds in the Woods

06 Friday Jan 2017

Posted by theresagreen in bird behaviour, birds of Wales, Bryn Euryn Nature Reserve, woodland birds

≈ 11 Comments

Tags

bird migration, Blue tit, coal tit, ferns that stay green in winter, goldcrest, Great Tit, long-tailed tit, redwing, the importance of ivy, treecreeper, wintergreens

January 2nd – Bryn Euryn

Clear blue skies and frosted grass sparkling in brilliant sunshine were too much to resist, this had to be the perfect day for my first long walk of the New Year. Less than five minutes along my path into the woods I knew this was set to be a slow walk when I stopped to photograph berries on a holly tree. I was surprised to find so many remaining uneaten and noted ripe ones fallen and peppering the ground beneath. If not for that I may well have missed the flock of beautiful redwings that burst from the trees on the steep lower slope of the Bryn, exploding from their cover and rapidly scattering like shot from a gun, targeting branches of trees close by. There were a number of them, but impossible to count as once landed they are really difficult to spot. I was thrilled to see them and to be able to watch them and delighted that I got any photographs at all, so of two, this was the best.

Redwing – Turdus iliacus

I knew there were redwings around as I’d been fortunate enough to see some from my kitchen window on the morning of New Year’s Eve and one a couple of days before that, but I had no idea whether they were just passing through or were here to stay. I’m not certain, but I think they were searching through ivy for ripe berries. Now I am hopeful they will stay for a while, at least while they are finding food.

Ivy berries are in varying stages of ripeness

Polypody fern

The majority of deciduous trees are bare now, but there is much that is green. Here we have our native holly, copious amounts of ivy, yew, a few Scots pines that are a native but that were most probably introduced, and rather a lot of laurel, once much beloved by Victorian gardeners.

At ground level there are ferns, the polypody in the photograph above, and also hart’s tongue and male ferns.

Hart’s tongue & a small male fern

And there’s lots of moss.

Then my reward for wandering slowly and numb fingers on my gloveless right hand, left free to focus and press the shutter button on the camera; suddenly I was surrounded by the joyous energy and excited sounds of a number of small birds. A feeding party, a collective of a variety of species of small woodland birds united in the eternal search for food.

It’s impossible to say who arrived first, I didn’t sense that there were leaders and followers, more that the flock was operating as a single entity arriving at a pre-determined spot with potential for all members. Of course there were blue tits, also great tits and a couple of coal tits.

Blue tit

An encounter with a feeding party of birds is a magical, uplifting and energising experience. The birds themselves exude excitement and energy, seeming to delight in the thrill of being part of a gang.

Coal tit

The enchanting long-tailed tits were there too.

Long-tailed tit

Once arrived they quickly settled to foraging amongst the trees and shrubbery, splitting back into their families or species groups. I would have been happy with the company of just the exuberant tits, but have to admit my attention was stolen from them when I noticed the treecreepers. Often included as members of a feeding party, there were two on a tree in front of me and then another two, closer to the side. What a treat to have that many of these gorgeous little birds so close and not only in range of the camera but with the added bonus of bright sunlight too.

Treecreeper

I lost track of time watching the birds, but they gradually moved away and passing people walking a dog and chatting broke the spell and I too turned to continue my walk. But there was one more little treat to come – two tiny goldcrests, that may or may not have been with the feeding party, were working their way through a small holly bush nearby. I watched them for a good while, but they eluded capture by my camera, they are much too quick especially when trying to contend with foreground vegetation. The shot below was the best one I got!

Goldcrest

Before heading on to the trail around the Bryn I had a look at the view over the boundary fence. The higher peaks of the Carneddau mountains have snow with clouds above them that look to be holding more. The warming sunshine had them shrouded in a light veil of mist, with more rising from the Conwy river in the valley below.

A Brilliant Day for Birds

12 Monday Sep 2016

Posted by theresagreen in bird behaviour, birds of Wales, Birdwatching on North Wales coast, Nature of Wales, nature photography, North Wales, North Wales Wildlife Trust, Rhiwledyn Nature Reserve

≈ 12 Comments

Tags

alca torda, bird migration, Black-headed Gull, coastal birds, Cormorant, gavia stellata, larus ridibundus, Northern Wheatear, oenanthe oenanthe, phalacrocorax carb, razorbill, red-throated diver, saxicola torquata, stonechat

September 10th – Little Orme, Rhiwledyn Nature Reserve

Taking the old cliff path around to Angel Bay, I disturbed a beautiful fresh(ly) Painted Lady butterfly. It circuited round a bit before settling on a stony patch, pressing its wings tightly against small sun-warmed limestone rocks.

A small crowd of people gathered on the cliff edge above Angel Bay looked promising; maybe there was something exciting to see down there? But alas, no. They were simply chatting and the beach was empty. This convinced me that as I suspected, female seals don’t give birth to their pups here; if they did they would surely be here by now. There were seals here, but only two, both swimming lazily around in the water. On this cool, misty-damp morning I suspect it was warmer in the water than out. One was hanging in the water with just its face above the water, showing off a lovely set of whiskers.

Another was simply cruising around peacefully.

There is a thriving breeding population of Cormorants here on the Little Orme, so there is never a shortage of these brilliant birds to see, especially around their nesting site on the cliffs further around the headland. At this time of year and through the winter months, their numbers are boosted greatly and the steeply sloping cliff face that forms one side of Angel Bay is punctuated with a multitude of black dots and dashes. This is now Cormorant Central; the volume and frequency of arrivals and departures of birds rivalling that of aeroplanes into and out of a busy airport.

I wonder how they work out their perching places? Do early arrivals get the prime spots and do they now have their own patch, or is it up for grabs if they leave to fish for lunch? Do they stick to family or colony groups?

Whilst pondering on the whys and wherefores of Cormorant society, I was distracted by two little shapes down in the Bay – definitely birds but I was, of course, on the wrong side to see them properly. It’s not uncommon to get the occasional Guillemot or Razorbill here once the breeding season is over, so I didn’t really think further than that. Winter-plumaged Red-throated Divers didn’t enter my head at the time, but that is what they were. Birds we get around this coast during the autumn and winter, but most often much further out that you need powerful optical assistance to spot.

I must get back into the habit of taking binoculars out with me instead of relying on my camera’s zoom; sometimes it’s not enough. In this instance a glimpse and a snapshot was all I got anyway; these birds are for once aptly named as they do dive – a lot, reappearing nowhere near where they went under. I walked around to the other side of the rocky hump on the Penrhyn Bay side of the headland as from there you get good uninterrupted views of a wide expanse of sea. Birds fly low past here, keeping close in to the cliff, so some good views of whatever is travelling by; mostly Herring gulls and a few Black-headed gulls today.

Black-headed gull–Larus ridibundus

There was a Cormorant swimming around on the sea’s surface, giving a good view of the strong hooked beak.

A small black and white bird bobbed into view and this really was a Razorbill Alca torda. It was a good way out to sea, but close enough that I could see, through the camera lens, that it was in the process of changing from summer to winter plumage. The plumage of the throat and sides of the neck change from black to white in the winter – the side of this one’s head is still a mix of the two.

It was in no hurry to move away and intent on having a good grooming session.

Members of the Auk family, to which both Razorbills and Puffins belong, look a little like penguins, although they are not closely related. The next few images show some of the similarities between them; species of both have black-and-white colours, an upright posture and share some of their habits.

‘bye ‘bye little Razorbill, thank you for the photographs. Have a good winter.

Now a perfect example of how my mind skips around. Although tuned into ‘bird mode’, I spotted a wild cabbage plant and thought ‘maybe there’ll be a Large White butterfly’s caterpillar on those leaves’. And there was, so a gap in my last-but-one post can be filled in!

I was watching the Razorbill et al for a good half an hour, maybe more, then walked back around the cliff to have a last look around Angel Bay. The seals had gone, but the movement of a smallish bird on the cliff edge caught my eye. Rock Pipit came to mind, but no, it was a much lovelier Northern Wheatear. It was either waiting for the weather to improve or taking in some food before continuing on his long migration back to warmer climes; perhaps both.

Northern Wheatear – Oenanthe oenanthe

I’m not certain whether this was a male or female as when males are in their winter plumage both sexes appear similar. I’m edging towards male as there seems to be a slate-grey patch remaining at the top of the wing. The bird’s common name of ‘Wheatear’ has nothing to do with its food preferences or its ears, but refers to its white rump (i.e white a**e)!

More people arrived at the cliff edge and my bird flew away, down onto the big rocks on the beach.

I began heading in the general direction of the ‘way out’, but hearing a Stonechat nearby diverted to see if I could find it. They’re one of my favourite birds and are often obliging in terms of appearing in the open. I wasn’t disappointed; as I passed by one perched up on top of a bramble, within whose tangled depths a pair have regularly nested.

At first I thought this was an adult female , but as I got a closer look I could see it still has a speckled head, so it’s probably a juvenile of this year’s brood.

Robins were out singing all around the site today, but more wary now of being seen than when they sing in the spring. The one I finally got close enough to photograph was perched on a bracken frond keeping a beady eye out for movements on the ground below, ready to pounce.

A Secluded Spot for Sunbathers

20 Saturday Aug 2016

Posted by theresagreen in bird behaviour, Birds, birds of Wales, Nature, nature photography, North Wales, woodland birds

≈ 10 Comments

Tags

bird parasites, birds preening, birds sunbathing, birds sunning, blackbird, dunnock, garden birds, Robin, why do birds sunbathe, Wren

“The perfect spot for sunbathing, in a peaceful woodland edge location, offers privacy and safety in which to relax or indulge in some leisurely grooming preening. No charge for use of facilities”.

This summer this ideal location, set conveniently for me just a few metres from my kitchen and bedroom windows, has been a popular spot with some of the local birds, particularly some of the younger ones.They come to make the most of this sheltered sun-trap to sunbathe, also known as ‘sunning’ in application to birds. Sunning birds may become so absorbed in the activity that they are easily approached, which can make them vulnerable to predators. They are safer here; there is no easy access to this spot from any angle, although a savvy Sparrowhawk may possibly be able to make a strike if it got its timing right so as not to cast a shadow.

160803-KW (3)-Blackbird & dunnock sunning

Dunnock and Blackbird sunning together

Most commonly we see Blackbirds and sometimes Robins sunning in gardens , but other species indulge too in slightly different ways.

Sunbathing Blackbirds are a fairly common sight in parks and gardens

To begin sunning, birds orient themselves to expose the maximum amount of their plumage to the sun. The classic sunning posture is thus: head and body feathers are fluffed up and out and depending on available space and/or sense of security felt, one or both wings are held out from the body with feathers spread; the tail is sometimes fanned out too. The bird may keep the same position throughout a sunning session, or it may change positions to expose different parts of its body to the sun.

Sunning is often a precursor to preening, vital to a bird’s feather maintenance, and in this instance it is thought this has two effects; one is that the sun’s heat helps to spread preening oil across the feathers. The other is that it drives out parasites from within the plumage that can then be more easily dislodged as the bird preens.

Sunning and Preening demonstrated by a Dunnock

I’m fairly sure this session was more concerned with pest control than anything else.

Firstly, adopt the sunning pose: fluff out feathers and spread tail and wing feathers. Well, alright just the tail feathers will do for now.

Secondly, begin preening with any particularly itchy spots caused by unwelcome hitchhikers.

Pay attention to armpits

Some areas such as the head and around the eyes and bill can only be serviced by extending and lifting the leg and having a good old scratch.

It helps to have a flexible neck.

That will have to do for now, it’s getting a bit shady here.Time to go.

The young Robin in the following sequence of images seems to be similarly afflicted with ‘lumps’ apparent on its neck.

The head and neck are areas birds are unable to reach with their bills and have to scratch with a foot.

The other side needs attention too.

It looks as though the bird’s frantic scratching has created a bald spot. And is that another lump under its eye?

During sunning sessions birds often have their bills open. This is because the warmth of the sun raises their body temperature and as they can’t release heat by perspiration, they have to regulate it some other way, so will gape and sometimes pant in order to lose heat.

To sum up, no-one knows for certain the reasons birds sunbathe, although several theories have been proposed.

To maintain the bird’s feathers in good condition. Exactly how sunning assists with this is not known, despite being widely studied. All birds have a gland on the rump, called an oil gland. The ‘preen-oil’ that this gland produces helps to keep the feathers flexible and hygienic. As preening usually occurs directly after sunning, it has been suggested that the sun affects the preen-oil in the feathers in some beneficial manner, or that it helps to synthesize the Vitamin D and helping to regulate it’s temperature.
The heat from the sun may stimulate activity in parasites within the feathers, making them more accessible when the bird starts to preen.
Birds also make use of the sun’s heat to increase their body temperature or prevent heat loss. This form of ‘sunning’ is also used when the bird dries itself after bathing.
They do it simply because they enjoy it.

A tiny Wren enjoying a quick sunbathe on a laurel leaf

House sparrows & Starlings at home

19 Tuesday Apr 2016

Posted by theresagreen in bird behaviour, birds of Wales, garden wildlife, Nature, Nature of Wales, nature photography, Rhos-on-Sea

≈ 17 Comments

Tags

birds of conservation concern, garden birds, house sparrow, house sparrows taking pampas grass, passer domesticus, starling

I was pleased to see House sparrows once again topped this year’s list of the RSPB Big Garden Bird Watch in England, Wales and Scotland, but we shouldn’t get complacent, they’re still on the ‘Red List’ of birds requiring the highest conservation priority, along with other species needing urgent action.

Over the past couple of weeks I have spent some afternoons dog-sitting for my daughter, which has given me the opportunity to catch up with the little flock that regard her garden, together with those of the immediate neighbours’ as their territory.

160222-Nat's garden-House sparrow after bathing

House sparrows love to bathe and sit on the fence to dry out

I don’t blame them for settling here, they have everything they need to live as easy and productive life as it is possible for birds to enjoy. Throughout the year they come and go throughout the day, enjoying the bounty of well-stocked bird feeders, a pond in which to bathe and hedges to provide cover and perching places. Every evening the whole community returns to roost safely within the prickly pyracantha hedge. Now they are well into the throws of nesting. Earlier on they began refurbishing last year’s nests or rebuilding any lost through winter pruning. There are perhaps 4-5 nests, sited close together, although the level of noise that emanates from within sounds like there should be more. A couple more pairs prefer the loftier location of the eaves above the third floor at the front of the house.

In the breeding season the dominant birds leave the safety of the hedges and perch prominently on the highest points of shrubs to proclaim their territory, although the individual territory of the male House Sparrow really only consists of the nesting hole and a very small area around it, which is defended vigorously.

Dominant males have larger, darker feather ‘bib’ patches

Females judge males on the vigor of his behaviour and also by his plumage. The black bib and how it is displayed is hugely important for him and size matters. Apparently males with small bibs can be induced to behave more boldly if they have bigger and blacker bibs painted on them!

160403-Nat's garden-House sparrow on elder

A younger male with only a semblance of a bib

160222-Nat's garden-House sparrow female perched

Dominant females join their partners, but tend to stay slightly lower down and prefer a little more cover

160222-Nat's garden-House sparrows eating greens

Female House sparrows eating fresh greenery

Every year, when the nests are built or refurbished, the sparrows systematically strip the soft fluffy seed heads of the pampas grass that grows in a neighbouring garden. I spent ages one afternoon watching them as they returned repeatedly to strip the stems and carry off the fronds. I assume they use the fluffy parts to line their nests, but wonder if there are seeds to eat too? I find this behaviour fascinating and have witnessed it in South Wales where pampas was growing and also in our garden in Spain. In each location they begin working on the plant on the same day, arriving sometimes in numbers, males and females and set to, detaching the fronds and carrying them off a beakful at time. The harvest continues over a few days until the stems are left bare.

A Starling pair are nesting in one of the chimney pots and they too enjoy the feeding and bathing facilities, also pausing to dry out on perched on the fence or at the top of the hedge. Still one of our commonest garden birds, its decline elsewhere makes it too a Red List species.

The bird in the photographs below is the male of the pair, identified by the blue colouration at the base of his bill; the female has a similar patch that is coloured pink.

The male sings beautifully, sometimes from up on the roof but also from the fence and the top of the hedge. His mate doesn’t get out much at the moment, so must be sitting on eggs.

The starling was singing, hence the fluffed out throat feathers

Starling female has a pink patch at the base of her bill

PS: The pampas grass is now just a collection of bare dry stems!

Welcome back to the Mistle Thrush

05 Friday Feb 2016

Posted by theresagreen in birds of Wales, Bryn Euryn Nature Reserve, Nature, Nature of Wales, nature of woodlands

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birds of conservation concern, Conservation issues, mistle thrush, turdus viscivorus

At 7.10 am it was barely light, but from high in a cherry tree, easily piercing the double glazing of my living room window, a Mistle thrush exuberantly proclaimed his return. He sang long and loud for at least the next hour before crossing the building to announce his presence from the woodland edge behind us. I was out for most of the day, but arriving home at 5 pm, again in the fading light, he was back in the same place reinforcing his presence.

Mistle thrush singing from ash tree

I could barely see him, so much to dark to photograph him, so the photograph is one from last year that I took of a bird in the neighbouring tree that arrived here on a similar date and behaved in a very similar way. I would like to believe it was the same bird returning to reclaim his breeding territory, especially as the Mistle thrush has moved from the amber list to red-listed status as a bird of conservation concern, with 170,000 breeding territories recorded.

Mistle thrushes are early nesters and many nests are built in late February. typically they favour sites in woodland as high as 30ft up on the top of a snapped-off tree. Each pair raises two or occasionally three broods and they may sometimes use the same nest. To my knowledge at least one pair bred successfully here on Bryn Euryn last year and similarly the previous year, so this is clearly a well-established breeding site – fingers crossed for this year too.

Secret passage behind the sea wall 2

17 Saturday Oct 2015

Posted by theresagreen in Birds, birds of the seashore, birds of Wales, coastal walks, Nature, Nature of Wales, nature photography, Rhos Point, Rhos-on-Sea, Wales Coast Path

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Crows on seashore, curlew flying, herring gull, meadow pipit, mussel bed, Rhos Point

An hour or so later the walk back to Rhos Point was quite different. The going was easier too as the strong wind was behind me now and not taking my breath away. Almost immediately I caught sight of a bird hopping around on the rocks. I waited hoping it would come into view, which it did, just as a woman with a dog approached and chose that moment to break into a run. The bird flew away. Again it was a pipit, possibly the same one I’d seen back on the beach. The legs are pinkish and plumage brown so maybe a Meadow Pipit?

A small sedum plants looks at home in a pocket eroded in a limestone rock.

Small pools of rainwater are held briefly, lasting longer in the hard granite rocks.

The garden snail must have found it hard going sliding over the rough surface of the sea wall.

There is a wide concrete ramp reaching from the road down to the shore which probably gave access to heavy construction vehicles when the huge boulders of the sea defences originally were put in place. The lower section is being absorbed back into the shore, it is strewn with pebbles and small rocks and slippery with seaweed. Limpets are embedded into the wall itself as well as in large rocks on the shore at the bottom of the ramp.

I love the textured ‘lacy’ look of this rock almost covered with barnacles.

The sea is often at its most beautiful on these sunny windy days, its surface whipped up roughened and flecked with foam-edged ripples and the colour of the water ranging from deepest inky dark blue to pale turquoise-green. Large areas are stained brown by dredged up sand.

Sun, shade and curves make this man-made construction interesting.

The white marks highlighting the curved sea wall are mineral, maybe lime leached from the concrete?

The parapet floor has an interesting pattern and texture and is spotted with patches of white lichen.

As I got nearer to the Point I knew the tide was further in by the increased bird activity; the excitement it generates is almost tangible. Gulls take to the air and fly back and forth along the shoreline. Oystercatchers and other waders scuttle about, heads down, beaks probing for anything edible brought in on the waves.

Crows head shorewards too, the one in my picture landed on a lampost towering above me, cawing loudly. They forage amongst the rocks along with the waders and are often seen picking up a shellfish then flying up with and dropping it onto the rocks below to crack it open.

Even the curlews were excited. Most often seen stalking sedately around rocks and pools, now there were several flying along at speed, skimming low over the rocks on the shore below me. A couple of them may have been in pursuit of the one I managed to capture a shot of; it was travelling so fast I didn’t realise it had food in its beak until I saw the photograph.

On the Point the incoming tide approaches from either side of the mussel bed, where I assume different currents merge. The birds have an infallible instinct for the tidal changes and in the hour before and after high tide their numbers increase dramatically. They are brought closer to the shore then too and absorbed with foraging and eating, are easier to see.

It was too cold and windy to hang around and wait today though, so I had a quick peek into the chapel, which I can never resist. There are only 6 seats inside, so I wonder if they’ve lined up these memorial benches on the promenade outside to serve as overflow pews?

Many young Herring gulls wander around the village at this time of year, often screeching for the attention of a parent. They have no road sense and sadly quite a few are killed by cars.

Ravens of the Little Orme

05 Monday Oct 2015

Posted by theresagreen in bird behaviour, bird mythology, Birds, birds of Wales, Little Orme, Nature, Nature of Wales, nature photography, Rhiwledyn Nature Reserve

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coastal birds, corvus corax, raven, raven folklore

Ravens once scavenged on the streets of London and other British towns and cities, but were gradually pushed further and further away to the west and north of the country, until the majority of those remaining were residing in the mountains of Scotland and Wales. At one time, due to persecution, their numbers were reduced to around 1,000 pairs and they became birds much associated with upland wild places. However, the ravens fortunes have turned and over the last twenty years their numbers have increased dramatically and they have repopulated much of Britain, including some urban areas. There are now over 12,000 breeding pairs.

Newborough forest on the Isle of Anglesey is famed for its huge raven roost, where up to 2,000 birds have been recorded, making it the second largest raven roost in the world.

Ravens are also found around the Welsh coast, where they nest on sea cliffs. In my local area of North Wales we are lucky in having a resident breeding pair on the Little Orme and for me, a visit there is not complete without seeing what these charismatic corvids are up to.

Raven-Corvus corax

RAVEN – Welsh name: BRAN – Scientific name: Corvus corax

The raven is Britain’s largest corvid (crow). Plumage is black and highly glossy in appearance, with bright sunlight bringing forth purple and green highlights; the tail is wedge-shaped. The bill is massive; adapted to pull apart raw flesh it’s an essential tool for a bird which scavenges on dead animals.

A flying raven showing the wedge-shaped tail and dead-mans fingers at wing tips

VOICE

Their call is distinctive, a deep croaking sound, known as ‘gronking’ which often alerts me to look up to watch one flying overhead and that is surely one of the most evocative sounds of Britain’s uplands.

Raven calling while flying

TERRITORY

The Little Orme’s resident ravens are the avian monarchs of this cliff. They are often seen sitting together on the cliff edge from where they survey their realm, gleaming regally in the sunshine, occasionally lifting their heads to gronk at passing birds or at the empty sky. They have no need to defend their territory as the mere physical presence of these powerful birds is enough to establish their claim to it. But as with other species of birds, when nesting they may become more defensive and will attack anything they perceive to be a threat.

Raven pair in a favoured spot on the clifftop

When they are not ensconced there, another favoured spot for perching is further up towards the summit atop a rocky ridge. They can sometimes be found flying along the cliffs and across the summit.

The male of the pair may also be found at the sea edge of the cliffs where he spends long minutes hunched on a ledge gazing out to sea watching for potential invaders.

July- Raven looking out to sea

FLIGHT

The everyday flight of the raven is direct, strong and steady, but it can also glide and soar freely and put on an impressive aerobatic display. In spring particularly, pairs of ravens tumble together high in the air, wings half-closed, rolling over sideways and nose-diving. They also have the trick of flying upside down for short distances. Perhaps these aerobics are part of the raven’s courtship display, but they may also perform for the joy of it and just because they can.

16/9/15-Raven soaring sideways

FOOD

Ravens are sometimes regarded as the vultures of sheep country as they patrol in a pair or as a family group, searching for carrion or an ailing sheep or deer which they will watch and wait to die. They will eat almost anything, mainly carrion and small animals, but also insects, shellfish and even grain and acorns.

NESTING

The Little Orme’s ravens return to the same nest each year, adding new material to renovate it as they need to. In the years I have watched them, they have raised only one or two young each year.

Both sexes build a nest of sticks cemented together with mud and bound and lined with moss and sheep’s wool or whatever is available locally, it is shaped into a deep cup, preferably on a ledge or in a crevice. They are amongst the earliest of birds to produce eggs, between February & April. There may be 4-6 eggs, pale green or blue with dark markings. Incubation, by the female only, takes about 19 days. Nestlings are fed by both parents until they leave at about 6 weeks.

31/5/14-Young raven on the nest almost ready to leave-Little Orme

MYTHOLOGY & FOLKLORE

The raven is probably one of the world’s most intelligent and playful bird. Modern experiments have shown that they can count up to 8. Our hunter-gatherer ancestors would have observed the keen intelligence of this bird. It has a well-documented habit of deliberately revealing the whereabouts of deer, so that hunting wolves can find their quarry and leave spoils, which the ravens could eat. Even modern deer-stalkers have reported ravens helping them to locate deer, as the birds know that they will receive the ‘gralloch’ or guts after the deer is killed.

Paradoxically it has also been regarded as a bird of ill-omen. The old collective noun for a group of ravens is an ‘unkindness’, perhaps because of its harsh call and its presence as a scavenger at scenes of death.

In the Old Testament of the Bible, the raven was the first bird Noah sent to look for land, and Elijah is described as being provided for by ravens. They are used as a symbol of God’s providence in both the New Testament and in Christian art.

There is probably more folklore concerning the raven than any other bird in Britain.

In Welsh folklore, Bran the Blessed, the brother of Branwen (Bran is Welsh for raven) is a deity and a guardian of Britain whose totem is a raven. According to the Mabinogion, Bran ordered for his own head to be cut off, after which it could still speak words of prophecy. Eventually it was said to have been buried beneath Tower Hill, at the Tower of London as a talisman against invasion.

The presence of ravens at the Tower is an echo of this legend and the prophecy says that if the ravens ever leave the tower, the Kingdom of England will fall, hence their wings are clipped as a precaution. It is thought that there have been at least six ravens in residence at the tower for centuries. Charles II reputedly ordered their removal following complaints from John Flamsteed, the Royal Astronomer. However, they were not removed as Charles was then told of the legend. Charles, following the time of the English Civil War, superstition or not, was not prepared to take the chance, and instead had the observatory moved to Greenwich.

Odin, the chief of the Norse gods, was accompanied by a pair of ravens, Hugin (thought) and Munin (memory), who would fly far and wide to bring news to Odin. One of Odin’s names, Hrafnagud, means the ‘Raven God’.

Beauty and the Bullfinch

24 Wednesday Jun 2015

Posted by theresagreen in bird behaviour, Birds, birds of Wales, Bryn Euryn Nature Reserve, Nature, Nature of Wales, nature photography, North Wales, woodland birds

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Bullfinch, bullfinch eating tree seeds, colourful British birds, Eurasian Bullfinch, pyrrhula pyrrhula

The Bullfinch, Common Bullfinch or Eurasian Bullfinch (Pyrrhula pyrrhula) is a small passerine bird in the finch family Fringillidae that breeds across Europe and temperate Asia and is classified as a Woodland Bird. Pyrrhula pyrrhula Eurasian Bullfinch -48 -1 ↓ -16 -2 ↓ sd

The male Bullfinch is surely one of our most strikingly beautiful and exotic-looking birds and a good sighting of one is always a treat, even if that does involve a certain amount of sacrifice of buds borne by your favourite fruit-tree. In the wild they tend to be more elusive, as despite their showy appearance the Bullfinch is a quiet, secretive character that usually spends its time among the branches and dense undergrowth of woodlands; often the only sight of one will have been a flash of a white rump retreating back into cover. Bullfinches are mainly sedentary or short-distance migratory birds and are relatively non-territorial, more likely to be seen in pairs or small family groups; they rarely flock as do other finches such as Goldfinches and Chaffinches.

I’ve had some wonderful sightings of Bullfinches this year and I haven’t had to work for them at all as they have been from my kitchen window and courtesy the tree directly in front of that window. A female appeared first, back in February and I included her in a blog at the time. I had a couple of glimpses of her subsequently and hoped she had a mate somewhere close by.

3/2/15-Bullfinch female

My first proper sighting of a male was much later on in May when he visited to dine on the seeds of the tree directly in front of the window.

13/5/15-Male Bullfinch

Based on that sighting and the species habit of not travelling far to find food, I hoped that he was paired with the earlier female and that they were nesting somewhere nearby. A couple of weeks later I saw him again and was able to watch him gorging on the tree seeds for a good few minutes; maybe the seeds were riper and more palatable.

25/5/15-Bullfinch male back for more seeds

DESCRIPTION

The Bullfinch most likely takes its common name from its shape, as they are plump-to-heavily-built and somewhat ‘bull-necked’. Both sexes have a stout grey-black bill, black wings, nape, crown and chin, and a white rump, under-tail coverts and wing-bar which are striking in flight. The tail is slightly forked and the legs are brown.

The Bullfinch has a beak perfectly adapted to remove and eat seeds

The adult male has a slate blue-grey back and a glorious deep rose-pink breast, belly and cheeks. The female has a brown back and pink-tinged grey-buff underparts. The juveniles are similar to the adult female, but do not have black caps.

The female Bullfinch has a pink-buff coloured breast

The female Bullfinch has pink tinged grey-buff coloured breast and underparts

VOICE

The song of this unobtrusive bird contains fluted whistles that is often described as sad or mournful. In Victorian times Bullfinches were a desired captive bird because of their beautiful plumage and call. It was believed that the caged bird could be trained to mimic music and it became a popular pastime to play a special flute to the bird.

HABITAT & BREEDING

Bullfinches usually nest in shrubs or bushes, such as blackthorn and hawthorn, in woodland, orchards, agricultural farmland or large gardens. The nest is a flimsy, loose structure of twigs and moss lined with fine roots and hair, which is built by the female. She lays and incubates eggs that are smooth, glossy and light blue with purplish markings at one end. The eggs are about 20 mm by 15 mm. Both parents feed the young after they have hatched.

DIET

In the late autumn Bullfinches range a little more freely foraging for food and feed largely on the seeds of herbaceous plants, but as winter sets in their attention turns to tree seeds, particularly those of the ash. In the spring tree buds, including hawthorn, blackthorn and sallow, as well as the buds of fruit trees, become the birds’ staple diet and it is this aspect of their lifestyle that in the past brought them into serious conflict with fruit farmers: a single bullfinch can easily remove 30 or more buds in a minute.

Not noted for its agility, the Bullfinch managed to reach and eat rather a lot

STATUS & CONSERVATION

In the UK the Bullfinch is mainly a year-round resident, but many northern (Scandinavian) birds migrate further south in the winter when our British population numbers may be temporarily swelled.

Bullfinch numbers increased enormously in the 1950s which brought about a serious problem for Brtain’s fruit-growing industry. The birds’ dietary preference put them into conflict with commercial growers and thousands were killed each year. Although trapping and culling reduced the damage the fact that catches continued year after year showed that it had no sustained effect on bullfinch numbers. But then gradually, from the mid 1970s, bullfinches became scarcer again and catches on most farms steadily declined.

A good view of the birds black cap and bill

A good view of the male’s black cap and bill

Subsequently, the Bullfinch was a Red List species for many years as their breeding population had declined by more than half. This was attributed to a reduction in quantity and quality of woodland margins and hedgerows and increased grazing by deer. However, their numbers have recovered once more (and continue to do so) and they are currently classified in the UK as an Amber List species under the Birds of Conservation Concern review.

ETYMOLOGY

There are several theories as to why the Bullfinch is so called. Most favour the bird’s shape as the key, but there is also the possibility it may once have been a ‘bud-finch’ referring to its Spring feeding habits and to the time of year when the birds are their most visible.

According to Mark Cocker & Richard Mabey 2005 (Birds Britannica):

“W. B. Lockwood feels that the explanation for the name (Bullfinch), which in medieval times was simply shortened to “bull”, ‘remains elusive’. Yet one cannot help thinking that the bird’s globular bill and neckless rotundity are the key. As in ‘bulldog’ or ‘bullfrog’, the name was intended to convey the creature’s front-heavy – literally bull-headed – construction.”

Francesca Greenoak 1997 (British Birds – their Folklore, Names & Literature) concurs: “from its large head and stocky form”.

But Greenoak also gives as other British names:

from its large head & stocky form: Bull Flinch (Yorks), Bull Head, Bulldog, Bull Spink, Bully (Yorks), Thick Bill (Lancs)
from ‘Alpe’ the old name for the bird: Alpe, Hoop, Hope (SW), Tope, Hoof, Cock Hoop (Hereford), Olf (E Suffolk), Nope (Staffs/Salop), Mwope (Dorset), Mawp (Lancs), Pope (Dorset)
colour names: Red Hoop (m, Dorset), Blood Olp (m, Surrey/Norfolk), Tawny (f, Somerset), Tony Hoop, Tonnihood (f, Somerset), Black Cap (Lincs), Billy Black Cap, Black Nob (Salop), Monk
from its partiality to fruit buds: Bud Bird, Bud Finch, Bud Picker (Devon), Budding Bird (Hereford), Plum Bird, Lum Budder (Salop)