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The American robin rejects cowbird eggs, so brood parasitism by the brown-headed cowbird is rare, and the parasite's chick does not often survive to fledging. [41] In a study of 105 juvenile robins, 77.1% were infected with endoparasites, Syngamus sp. being the most commonly encountered, in 57.1% of the birds. [42]
Like many brightly coloured robins of the family Petroicidae, it is sexually dimorphic. Measuring 13.5 cm (5.3 in) in length, the robin has a small, thin, black bill, and dark brown eyes and legs. [3] The male has a distinctive white forehead spot and pink breast, with grey-black upperparts, wings and tail. The belly is white.
The larger American robin (Turdus migratorius) is a much larger bird named from its similar colouration to the European robin, but the two birds are not closely related, with the American robin instead belonging to the same genus as the common blackbird (T. merula), a species which occupies much of the same range as the European robin. The ...
Illustration of the black robin, the Chatham fernbird, and Lyall's wren, extinct birds from its region, by John Gerrard Keulemans. The black robin is a small, sparrow-sized bird measuring 10–15 centimetres (3.9–5.9 in). Its plumage is almost entirely brownish-black, with a black bill and brownish-black yellow-soled feet.
Cape robin-chat (at right) feeding a red-chested cuckoo parasite chick. The Cape robin-chats are monogamous and highly territorial nesters. [19] A pair's territory usually comprises some fraction of a hectare, but its extent varies considerably depending on the habitat. [18] The nest site is within 5 feet (regularly 0 – 2 feet) from the ground.
Robin Wright doesn't mind playing cruel characters. In fact, she enjoys it. “I think it’s just more layers, more fun, more challenge,” says Wright in a sit-down interview with TODAY.com.
An American robin (Turdus migratorius) feeding its chick a worm. Parental care refers to the level of investment provided by the mother and the father to ensure development and survival of their offspring. In most birds, parents invest profoundly in their offspring as a mutual effort, making a majority of them socially monogamous for the ...
But the Robin-produced radar systems have “on-the-move” functionality, allowing them to “perform even when mounted on mobile objects, like vehicles or ships.” “Robin’s 3D drone ...