繁殖期雄鳥 © Cliff Peterson eBird S22990397 Macaulay Library ML 41644021
雌鳥/雄未成鳥 © Jerry Callaway
非繁殖期雄鳥 © David Disher
繁殖期雄鳥 © Brad Imhoff
雌鳥/雄未成鳥 © Alex Lamoreaux
+ 2
繁殖期雄鳥 © Gordon Dimmig

Blue Grosbeak Passerina caerulea

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辨識

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Beefy, big-headed, large-billed bunting. Male is deep cobalt blue with rufous wingbars. Females are warm brown with rufous or buffy wingbars. Always look for enormous bill to separate from other buntings; also note unstreaked underparts and slightly longer tail. Swishes tail like other buntings. Fairly common in overgrown fields with hedgerows and bushes. Breeds mostly in the southern half of the U.S. and northern Mexico; winters throughout Central America. Often gathers in flocks in the winter.

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