雄成鳥 (Taiga) © Brian Sullivan eBird S9876594 Macaulay Library ML 27354311
雄成鳥 (Prairie) © Andy Bankert
成鳥 (Black) © Ryan Merrill
雌鳥/未成鳥 (Taiga) © Alix d'Entremont
雌鳥/未成鳥 (Prairie) © Joel Adams
+ 9
雄成鳥 (Taiga) © Tim Lenz
雌鳥/未成鳥 (Taiga) © Alex Lamoreaux
雌鳥/未成鳥 (Taiga) © Jonathan Eckerson
成鳥 (Black) © Joachim Bertrands | Ornis Birding Expeditions
雄成鳥 (Pallid) © Prabhakar Manjunath
雌鳥/未成鳥 (Pallid) © Andrey Kovalenko
雄成鳥 (Eurasian) © Yann Muzika
棲地 © Scott Ramos

灰背隼 Falco columbarius

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辨識

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Small and fierce falcon. Dark above and paler below, with streaking on the underparts; darkness of plumage varies geographically. Feeds mainly on birds captured in flight. Found in a variety of habitats from grasslands, open forests, and especially coastal areas with shorebirds. Flies powerfully on pointed wings with quick, continuous wingbeats.

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