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Short-eared Owl

Asio flammeus (Pontoppidan, 1763)

Сова болотяна | Болотная сова

2017-02-12
Maslivka, Kyiv region
© Andrew Simon

Description

Background color of adult Short-eared Owls is very variable from pale-buff or almost white to rusty-yellow. Males usually are paler than females; young in first autumn plumage and adults in fresh plumage are darker than in outworn one. Head is with broad brownish core-streaks above. Mantle is buffy with dark broad core-streaks; outer webs of some feathers are with pale edges and with conjugate pale spots, sometimes joined to pale cross-strips. Outer webs of shoulders feathers and upperwing coverts are with white spots. There is not marble pattern as on Long-eared Owl. Primaries are rusty-buff with irregular cross-streaks and spots. Outer web of first primary is with three dark spots in male; and with six dark spots in female. Tail feathers are quit bright rusty-buff with six cross-bands 8-10 and more mm in width. Facial disc is pale with dark broad ring over eyes. Underparts are paler than mantle; and are yellowish-buff in females, males underparts are often white or slightly yellowish; with broad dark-brownish longitudinal streaks on breast and narrow on belly. Tarsus and toes feathered up to claws are pale-buff without streaks. Eyes are yellow, bill and claws are black. Young birds are dark-brownish above with buffy edges in tips. Breast is brownish, belly rusty without cross-mottles, facial disc is black-and-white. Sizes: males wing 290-312, tail 130-141, tarsus 38-41 mm, bill 14 мм; females wing 306-315, tail 132-150, tarsus 39-43, bill 14 mm. Weight 300-324 gr.

References

"Птицы Казахстана" том 2. "Наука". Алма-Ата, 1962.

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