潜鸟科|潜鸟属
学名:Gavia arctica
英名:Black-throated Diver
形态:大型游禽,体长56-75cm。繁殖期头灰色,喉及前颈闪辉墨绿色,上体黑色具白色方形横纹。颈侧及胸部具黑白色细纵纹。非繁殖期下体白色上延及颈侧、颏及脸下部,两胁白色斑块明显。第一冬的鸟上体具白色鳞状纹。
虹膜红色;嘴灰黑色;脚黑色。
分布:繁殖于北半球,从苏格兰北部至西伯利亚。冬季南迁至北纬30°左右。在保护区属罕见的旅鸟,2013年9月19日在老铁山灯塔海域观察到1只。
习性:单独在淡水水域繁殖,冬季常成散群在沿海越冬。主要以各种鱼类为食。
ID: Large swimming bird.Body length 56-75cm.Summer adult has velvety pale grey crown and hindneck, black throat patch with green gloss, and clear black and white stripes on neck and breast-sides.Upperbody has a pattern of distinct white patches.Winter adult has white extending from cheeks, throat, foreneck to underbody.Distinctive white flank patch in all plumage.Juvenile/1 st-winter has pale, scaled pattern on back and scapulars.
BP: Eyes red; bill greyish black; tarsi black.
SD: Rare migrant.One in the sea near the lighthouse on Laotie Mountain on 19 Sep,2013.
HH: Solitary pairs breed at clear lakes and pools.Winter along coasts at times in loosely scattered gatherings.Feed mainly on fish.
黑喉潜鸟[摄影 刘涛]
免责声明:以上内容源自网络,版权归原作者所有,如有侵犯您的原创版权请告知,我们将尽快删除相关内容。