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Monday, April 2, 2012

A Springtime Blog by Donie

Garden Birds of springtime heaven  

A pair of mistle thrushes eating a apple in the snowGarden birds       The Thrush



The true thrushes are a very species-rich group of birds and also one of the world's most common and widespread. Alongside the obvious thrushes are the blackbirds, fieldfare, redwing and some robins. Members, including at least one common garden species, are to be found on every continent except Antarctica. Notably, North America has the American robin and Europe has the blackbird. From the 60 or so species of true thrush, there is a selection for you to explore below, including that champion songster the blackbird. Follow the image link to hear its unmistakeable song. 
The true thrushes are medium-sized mostly insectivorous or omnivorous birds in the genus Turdus of the thrush family Turdidae. 

The genus has a cosmopolitan distribution, with species in the Americas, Europe, Asia, Africa and Australia. Several species have also colonised some oceanic islands, and two species have been introduced to New Zealand. Some New World species are called robins, the most famous of which is the American Robin. Several species are migratory. 
While some species are often split out of Turdus, the two small thrushes formerly separated in Platycichla by many authors are usually placed in the present genus again in recent years.

Song thrush
Ringing out loud and clear across the neighbourhood, the song thrush performs the most beautiful song. It's also a song that becomes richer and more complex as the bird grows older. 

Song thrushes call upon a repertoire of over one hundred phrases; usually delivered from an elevated stage, such as a chimney pot or tree top. They're also pretty good mimics of sounds gathered from the world around them. 

This most musical bird song has inspired many a poet, from Robert Browning and Thomas Hardy to William Wordsworth. 

Did you know?
Song thrushes use a favourite 'anvil' stone to smash open snail shells for the tasty meat inside.
The Song thrush can be found in a number of locations including: AfricaAsia,ChinaEuropeMediterraneanRussiaUnited KingdomWalesYnys-hir nature reserve. Find out more about these places and what else lives there.
Habitats
The following habitats are found across the Song thrush distribution range. Find out more about these environments, what it takes to live there and what else inhabits them. 
The Song Thrush (Turdus philomelos) 
Song thrush at water   
The Song Thrush is a thrush that breeds across much of Eurasia. It is also known in English dialects as throstle or mavis. It has brown upperparts and black-spotted cream or buff underparts and has three recognised subspecies. Its distinctive song, which has repeated musical phrases, has frequently been referred to in poetry.
The Song Thrush breeds in forests, gardens and parks, and is partially migratory with many birds wintering in southern Europe, North Africa and the Middle East; it has also been introduced into New Zealand and Australia. Although it is not threatened globally, there have been serious population declines in parts of Europe, possibly due to changes in farming practices.
The Song Thrush builds a neat mud-lined cup nest in a bush or tree and lays four or five dark-spotted blue eggs. It is omnivorous and has the habit of using a favourite stone as an "anvil" on which to smash snails. Like other perching birds (passerines), it is affected by external and internal parasites and is vulnerable to predation by cats and birds of prey.
The Blackbird 
Worm charming Blackbirds are ground feeders pulling worms and pecking at insects and berries at the bottom of hedgerows. The males are all black and the females all brown except for the yellow-orange eye ring and beak. Breeding males establish their territories early in the year with rich warbling songs, and a pair may hold their territory throughout the year if the climate is favourable. 
Blackbirds are one of the commonest birds in Britain and there are thought to be over four million breeding pairs, although their numbers have suffered in the last 25 years. Albino blackbirds are not uncommon and many have white patches of feathers. Completely white individuals seldom survive, as they are more conspicuous to predators. 
Nestcam close-ups, expert identification guides and specialist wildlife cameras give a privileged view of a very British obsession: garden birds. Whether it's to attract the red-breasted robin, the little Jenny wrenor the sensational singing blackbird, we spend over £150 million each year on bird seed and garden gadgets to entice birds into our back gardens and outdoor spaces, so we can share in the dramas of their fleeting lives. From the difference between garden, willow and wood warblers to an intimate view of the promiscuous dunnock, this video collection represents garden bird highlights from the BBC's wildlife archive. 
The Common Blackbird 
Male blackbird standing at edge of water The Common Blackbird (Turdus merula) is a species of true thrush. It is also called Eurasian Blackbird (especially in North America, to distinguish it from the unrelated New World blackbirds), or simply Blackbird, where this does not lead to confusion with a similar-looking local species. It breeds in Europe, Asia, and North Africa, and has been introduced to Australia and New Zealand. It has a number of subspecies across its large range; a few of the Asian subspecies are sometimes considered to be full species. Depending on latitude, the Common Blackbird may be resident, partially migratory or fully migratory.
The male of the nominate subspecies, which is found throughout most of Europe, is all black except for a yellow eye-ring and bill and has a rich melodious song; the adult female and juvenile have mainly dark brown plumage. This species breeds in woods and gardens, building a neat, mud-lined, cup-shaped nest. It is omnivorous, eating a wide range of insects, earthworms, berries, and fruits.
Both sexes are territorial on the breeding grounds, with distinctive threat displays, but are more gregarious during migration and in wintering areas. Pairs will stay in their territory throughout the year where the climate is sufficiently temperate. This common and conspicuous species has given rise to a number of literary and cultural references, frequently related to its song.
The Bearded tit
A bearded tit perched in a reed bed The Bearded tits are particularly vulnerable to long cold winters, when populations can be reduced to mere handfuls. Thankfully populations recover successfully after milder ones. The arrival of spring also brings its own problems as flooding can wash away their nests. Their common name is quite misleading as they do not have beards, though the males do sport markings that look rather like a moustache. They are also no longer assigned to the tit family! Bearded tits are wetland specialists, that breed in the reed beds and swamps of Europe and Asia. There are around 500 pairs in the UK found in south and east England.
The Blue tit
Blue tit landing on a tree branch  Blue tits are bright, inquisitive little birds that have been shown to use aromatic leaves from lavender, mint and curry plants to disinfect their nests. They are also infamous for following milkmen to take sneaky sips from milk bottles by tearing through the foil tops. 

Cosmopolitan foragers, blue tits are found throughout Britain and as far east as Iran. Their colourful plumage makes them a cheerful sight on garden feeders, although during spring and summer they mostly feed on invertebrates. The yellowness of a male blue tit's breast is an indication of the number of yellowy-green caterpillars he has eaten, and a brighter breast is more attractive to females.
The Chaffinch
Chaffinch perched on branch surrounded by blossom Chaffinches are cheerful garden visitors that have been known to live for a remarkable 14 years. Males are recognisable for their pink cheeks and chest and blue-grey nape and crown; both sexes have distinctive white flashes on their wings. 

During winter European chaffinches migrate to Britain. Curiously, it's typically the females that migrate as the males prefer to remain in northern Europe. These remaining lone males give rise to their Latin name "coelebs" meaning bachelor. 

Chaffinches are one of the most common birds in Britain, with almost six million breeding pairs. Their distinctive, jangling songs vary from bird to bird, and there are even regional dialects in different parts of the UK.
The Chiffchaff
Chiffchaff spreading wings for flight Chiffchaffs are extremely active birds, constantly flicking their tails and wings while feeding. They favour small insects, including caterpillars, gnats and midges, that are foraged from high in the canopy. They also catch flies in mid-air and hover to pick insects from under leaves. Chiffchaffs will only sing in trees more than 5m high. These small dumpy warblers are summer visitors to the UK and are scarce in Scotland. They are found across Eurasia and parts of Africa, favouring woodlands and areas with a good degree of tree cover.
The Crested tit
Crested tit perched on branch  Crested tits are not as colourful as other tits, but have their identifying crests and black and white striped faces. They are characteristic birds of pinewoods and, as a pine plantation grows, so does its crested tit population. Crested tits cache moth larvae during the autumn, to help when food is scarce in the winter. In spring, they store pine seeds for later consumption. The Scottish crested tits are geographically isolated from those on mainland Europe and are now considered to be a sub-species.
Sparrowhawk
A female sparrowhawk perched on the branch of an oak tree  Sparrowhawks are so-named because 98% of their diet consists of other birds. Although sparrowhawk numbers declined very badly as a result of pesticide use, the British population has now recovered almost everywhere and there may be as many sparrowhawks breeding as kestrels

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