Brown-necked Raven

Brown-necked Raven

Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow

     

бумажная книга



Издательство: Книга по требованию
Дата выхода: июль 2011
ISBN: 978-6-1333-9898-6
Объём: 84 страниц
Масса: 147 г
Размеры(В x Ш x Т), см: 23 x 16 x 1

High Quality Content by WIKIPEDIA articles! The Brown-necked Raven (Corvus ruficollis) is a larger bird (52–56 cm in length) than the Carrion Crow though not as large as the Common Raven. It has similar proportions to the common raven but the bill is not so large or deep and the wings tend to be a little more pointed in profile. The head and throat are a distinct brownish-black giving the bird its English name, while the rest of the plumage is black glossed with purple, blue or purplish-blue. The feathers of this species often fade quite quickly to a brownish black (even the truly black feathers) and the bird can look distinctly brown by the time it moults. The feet, legs and bill are black. The Dwarf Raven was formerly considered a subspecies (Corvus ruficollis edithae) but this bird now appears to be closer to the Pied Crow (C. albus) than this species. Hybrids between this species and the Pied Crow seem to reinforce their close relationship. This species is found principally in Somalia and neighbouring areas.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.

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