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2021-03-26
Bukhara region, Gijduvan district, Shorkul lake |
© Maksim Mitropolskiy
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The Isabelline Wheatear is larger than Northern Wheatear, has the longer legs, larger head and shorter tail. Sexes are similar and have light tawny color. Both male and female look same female Northern Wheatear but duller and lighter especially the wings; the axillaries and underwing coverts are white, whereas in the commoner bird they are mottled with grey; alula is the darkest part of the wing. The male is distinguished from female by the neat and darker lore, but some females also have quite dark lore. The differences in color of seasonal plumages are insignificant. Juveniles are darker than adults, have dark and light-buffy spots on upperparts and crescent patterns on the breast. Juveniles Isabelline Wheatears are distinguished from juveniles of other Wheatears by the tail. The tail in all plumages has the wide dark-brown terminal band about half of tail in length. The behavior is same on other Wheatears; looking round it often upright stays. Weight 22-38 grams, length 15-19, wing 8,0-10,6, wingspan 28-32 cm.
В.К.Рябицев. "Птицы Урала, Приуралья и Западной Сибири". Екатеринбург, Изд-во Уральского университета, 2000. А.Ф.Ковшарь "Певчие птицы". Алма-Ата, "Кайнар", 1983.