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鸻科| 鸻属

学名：Charadrius mongolus

英名：Lesser Sand Plover

形态：小型涉禽，体长18-20cm。上体灰褐色。嘴粗短，黑色。脚暗绿色。夏季雄鸟颊和喉白色；额有黑带；胸和颈棕红色，颏、喉白色，其后有一黑色细线，界于胸的棕红色之间。其余下体白色。雌鸟和雄鸟大体相似，但额无黑斑；冬季胸部棕红色消失，仅具窄的褐色胸带，贯眼纹褐色，眉纹白色。飞翔时翅上具显著的白色翼带。

虹膜褐色；嘴黑色；腿深灰色。

分布：中国东北及东部沿海地区有分布。在保护区属常见的旅鸟。

习性：常在沿海泥滩及沙滩活动，与其他涉禽混群，冬季常集成大群活动。主要以昆虫、小型甲壳类和软体动物为食。

ID: Small wading bird.Body length 18-20cm.Upperbody greyish brown and underbody white.Bill short and black.Legs dark green.Breeding male has white cheeks and throat， black forecrown.Neck and breast rufous， chin and throat white finely bordered black.Female similar but has no black on forecrown.Non-breeders lack rufous breast band， and have only narrow brown breast sides， brown eye-stripe and white supercilium.White wing bar conspicuous in flight.

BP: Eyes brown； bill black； tarsi dark grey.

SD: Common migrant.

HH: Frequents coastal mud and sand flats， often with other shorebirds.Forms large flocks in winter.Feeds mainly on insects， small crustaceans and molluscs.

蒙古沙鸻