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2019-04-04
Surhandaryinskaya oblast |
© Ilya Ukolov
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The male of the Blue Whistling Thrush is black purple tinged; with the glistening sharp ends of little feathers; the underparts are same on the back but the rear part of the abdomen and undertail are dimmer. The forehead is light-purple. The flight feathers have bright-purple outer webs and dark-brown inner ones; the secondaries have purple inner webs also but dark-brown is kept only as narrow strip along the core of the feather. The tail is purple with brownish borders of the webs of the tail feathers. The bottom of the tail and flight feathers are dark-brownish. The feathers of the uppertail with the white base of the both webs. Some of median coverts with bright-white round spots forming chain-shaped strip across the wing. The legs and claws are dark-brown; the bill is yellow with the dark-brown comb lightening to the hooked tip. The eyes are dark-brown. In fresh plumage the coloring is brightly and more purple, in old plumage one is dimmer. Sexes are similar. Juveniles are dark-brown purple tinged, dimmer than adults; the head and wing coverts without glistening tips. The bill is dark. Weight 130-195 grams, males wing 178-197, females wing 170-185.
"Птицы Казахстана" том 3. "Наука". Алма-Ата, 1970. А.Ф.Ковшарь "Певчие птицы". Алма-Ата, "Кайнар", 1983. "По страницам Красной книги Казахстана. Позвоночные животные". Составитель А.Ф.Ковшарь. Алматы, "Алматыкiтап", 2004.
