繁殖期成鳥 © Ian Davies eBird S70014009 Macaulay Library ML 276543461
非繁殖成鳥/未成年鳥 © Denny Swaby
非繁殖成鳥/未成年鳥 © Darren Clark
繁殖期成鳥 © Paul Barchilon
繁殖期成鳥 © Peter Nichols
+ 4
幼鳥 © Susan Teefy
繁殖期成鳥 © Tim Lenz
繁殖期成鳥 © Ad Konings

American Avocet Recurvirostra americana

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辨識

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Distinctive large shorebird with a long, thin, upturned bill. Look for bold black-and-white wings and long blue-gray legs. Breeding adults have buffy-orange wash on head and neck; grayish in winter. Females have more sharply upturned bills than males. Widespread and fairly common in North America, although rare or absent from much of the eastern U.S. Usually seen in flocks, sometimes numbering into the hundreds, foraging in shallow wetlands or estuaries. Feeds by swinging its head back-and-forth through the water to catch small invertebrates.

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