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RED-breasted robins may be Ral essential part of Christmas, but their distinctive plumage has far greater significance for the birds themselves, a study has shown. The red worlc varies in size and coloration with age and sex, suggesting it may communicate information about its owner, scientists believe. As long ago as wodld s, British ornithologist David Lack carried out a study in which a violent hen robin attacked a headless stuffed Real world robin titties. Scientists conducting the new research looked in more detail at the role of the robin's breast, as well as the grey fringe which frames the red feathers. The researchers expected that both sexes would have Real world robin titties sized red breasts and grey fringes. The size of the red breast was found to increase from the first to second year of life in both males and females. However, older males had larger red badges than females after their second year. Computer models were also used which Crackers password xx account of environmental brightness and the way robins see colour contrast. They showed that, from a robin's point of view, the grey fringe which increases with age highlighted the edge of the red breast. The findings, published in the journal Ibis, suggest that the red breast conveys information about sex, age, or related condition-dependent traits. Further studies will likely show more surprises on Real world robin titties role of the red breast and its grey frame on resolving territorial contests and mating Blow up your tv john prine in robins. Will the gift from your loved one be the pair of earrings from Loulerie you've been longing for? Maybe some velvet loafers, the sort you're sure will keep you dancing 'til dawn on New Year's Eve? Or - dare we Ryan Nugent Thousands...

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The European robin Erithacus rubecula , known simply as the robin or robin redbreast in the British Isles, is a small insectivorous passerine bird , specifically a chat , that was formerly classified as a member of the thrush family Turdidae but is now considered to be an Old World flycatcher. It is found across Europe, east to Western Siberia and south to North Africa; it is sedentary in most of its range except the far north. The term robin is also applied to some birds in other families with red or orange breasts. These include the American robin Turdus migratorius , which is a thrush , and the Australasian robins of the family Petroicidae , the relationships of which are unclear. The European robin was described by Carl Linnaeus in in the 10th edition of his Systema Naturae under the binomial name Motacilla rubecula. The genus previously included the Japanese robin and the Ryukyu robin. These east Asian species were shown in molecular phylogenetic studies to be more similar to a group of other Asian species than to the European robin. The distinctive orange breast of both sexes contributed to the European robin's original name of redbreast orange as the name of a colour was unknown in English until the sixteenth century, by which time the fruit of that name had been introduced. In the fifteenth century, when it became popular to give human names to familiar species, the bird came to be known as robin redbreast , which was eventually shortened to robin. Other older English names for the bird include ruddock and robinet. In American literature of the late 19th century, this robin was frequently called the English robin. The robin belongs to a group of mainly insectivorous birds that have been variously assigned to the thrushes...

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Sheffield scientists now know why kingfishers catch fire, robins are red, and jays are blue: The research has a potential pay-off for fabric manufacturers and the paint industry. If blue jays never turn grey with age because their colour is based on the way light is manipulated rather than a splash of natural dye, then fashion designers could perhaps dream up amazing technicoloured coats that would never fade in the wash. Andrew Parnell and colleagues reveal in the journal Scientific Reports that they used feathers from the Natural History Museum in London and one of the most powerful microscopes on the planet — the European Synchrotron Radiation Facility at Grenoble in France — to look at the exquisite engineering of the feather barbs of the Eurasian jay. Garrulus glandarius displays a suite of colours that range from white through light blue, dark blue and black. And the jay — like most birds — seems to be able to fine-tune the sponge-like structure of the keratin from which its feathers are made, to maintain distinctive patterns throughout its life. Such engineering solutions are not universal — flamingos for instance get their pink tinge from a diet of shrimps and shellfish rich in carotenoids — but for many birds, the colour comes with the basic biology. If the colours were just a consequence of pigment consumed with food, then these inevitably would fade. Engineers have already started to exploit the glue that keeps marine mussels in one spot in rough seas; experimented with an air conditioning system first invented by termites, and begun to explore the strange forces that permit a gecko to run up a vertical wall. The message from the bird world could start another line of research. That bird colouration was not simple was first observed at the dawn...

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But when snow and ice covers the ground, the robin will be the first to come to our back door in search of a handout. Indeed, robins look to us for sustenance during cold spells, as their natural food of earthworms and other invertebrates can be hard to find. As any gardener will tell you, robins have struck up an extraordinary relationship with humans and will boldly perch on a bucket edge or fork handle to pick up worms that have been unearthed. But most of us actually know very little about these busy, hardy little birds that are fearsome fighters with glorious voices and which, all too often, have a sadly short lifespan. Robins look to us for sustenance during cold spells, as their natural food of earthworms and other invertebrates can be hard to find. Our love of robins and habit of feeding them in our gardens goes back a very long way according to legend. Back in the sixth century, Saint Serf of Fife most famous for slaying a dragon terrorising people near Loch Lomond was apparently the first person to start feeding them. His friends were so jealous they killed the bird, but fortunately it was brought back to life. Stories about feeding robins are common because they are legendary for their tameness, and one of the few wild birds that will take food from the hand. Recently, naturalist Hugh Warwick hand-tamed a robin in a few days. After a while, the bird would even come inside his home to beg for food, making him wonder who was in charge in their relationship. I have been fascinated by robins since childhood, which is why I have written a book about these remarkable birds. Now I live in Somerset, I see them everywhere: As I write these...

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The American robin Turdus migratorius is a migratory songbird of the true thrush genus and Turdidae, the wider thrush family. It is named after the European robin [2] because of its reddish-orange breast, though the two species are not closely related, with the European robin belonging to the Old World flycatcher family. The American robin is widely distributed throughout North America, wintering from southern Canada to central Mexico and along the Pacific Coast. It is the state bird of Connecticut , Michigan , and Wisconsin. The American robin is active mostly during the day and assembles in large flocks at night. Its diet consists of invertebrates such as beetle grubs , earthworms , and caterpillars , fruits, and berries. It is one of the earliest bird species to lay eggs, beginning to breed shortly after returning to its summer range from its winter range. Its nest consists of long coarse grass, twigs, paper, and feathers, and is smeared with mud and often cushioned with grass or other soft materials. It is one of the first birds to sing at dawn, and its song consists of several discrete units that are repeated. The adult robin is preyed upon by hawks , cats, and snakes. When feeding in flocks, it can be vigilant, watching other birds for reactions to predators. Brown-headed cowbirds Molothrus ater lay eggs in robin nests see brood parasite , but the robins usually reject the eggs. This species was first described in by Carl Linnaeus in the twelfth edition of his Systema Naturae as Turdus migratorius. The term robin for this species has been recorded since at least Though having distinct plumage , the two species are similar in vocalization and behavior. Beyond this, it lies in a small group of four species of otherwise Central American...

Real world robin titties

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The American robin (Turdus migratorius) is a migratory songbird of the true thrush genus and Turdidae, the wider thrush family. It is named after the European robin because of its reddish-orange breast, though the two species are not closely related, with the European robin belonging to the Old World flycatcher family. Dec 15, - Robin's red breast tells story of age, sex and temperament in understanding the role of the red breast and the grey frame in the life of robins. Dec 17, - Despite their appearance, robins can be very aggressive — males will fight and even kill their rivals. Crucially, its red breast acts as a red flag.

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