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2018-09-30
Tashkent area, valley of Pskem River, Lake Urungoch |
© Maksim Mitropolskiy
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Adult Yellow-billed Choughs both males and females have all black plumage with greenish or bluish metallic gloss. Bill is short, lemon-yellow. Legs are red, claws are black. Eyes are dark-brown. Juveniles in autumn have dim-black plumage without gloss; legs are off-yellow; bill is brownish. Size: male wing - 263-278, tail 171-187, bill 31, tarsus 42-46 mm; female wing 235-289, tail 159-181, bill 27-31, tarsus 29-42 mm. Weight - 202-280 gr.
"Птицы Казахстана" том 5. "Наука". Алма-Ата, 1974.
