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出典:『Wikipedia』 (2011/06/21 19:46 UTC 版)

英語による解説

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The Elf Owl (Micrathene whitneyi) is a member of the owl family Strigidae that breeds in the southwestern United States and Mexico. It is the world's lightest owl, although the Long-whiskered Owlet and the Tamaulipas Pygmy-owl are of a similarly diminutive length. The mean body weight of this species is 40 grams (1.4 oz). These tiny owls are 12.5 to 14.5 cm (4.7-5.5 in) long and have a wingspan of about 27 cm (10.6 in). Their primary projection extends nearly past their tail. They have fairly long legs and often appear bow-legged. They can often be heard calling to one another just after dusk or at sunset. Their call is a high-pitched whinny or chuckle. The male and female dart around trees and call back and forth.