燕鸥科|浮鸥属
学名:Chlidonias leucopterus
英名:White-winged Black Tern
形态:小型水鸟,体长20-26cm。尾浅开叉。繁殖期成鸟的头、背及胸黑色,与白色尾及浅灰色翼成明显反差;翼上近白,翼下覆羽明显黑色。非繁殖期成鸟上体浅灰,头后具灰褐色杂斑,下体白。
虹膜暗褐色;嘴繁殖期红色,非繁殖期黑色;脚红色。
分布:中国东部及沿海地区有分布。在保护区属罕见旅鸟,近5年内没有监测到。
习性:栖息于内陆平原湖泊、河口和附近沼泽地带,有时也出现在沿海沼泽地带。常成群活动。主要以小鱼、虾、水生昆虫和无脊椎动物为食。
ID: Small water bird.Body length 20-26cm.Tail shallow-forked.Adult breeding has black head, mantle and breast, contrasting with white tail and pale grey wings.Upperwing whitish,underwing coverts black.Non-breeders has pale grey upperbody, nape diffusely streaked greyish brown, underbody white.
BP: Eyes dark brown; bill red(breeding) or black(non-breeding); tarsi red.
SD: Rare migrant.No record in recent five years.
HH: Frequents lakes, estuaries and nearby marshes in inland plains, sometimes at coastal marshes.Often in flocks.Feeds mainly on fish, prawns, aquatic insects and invertebrates.
白翅浮鸥(br.) [摄影 林植]
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