n.长尾凫；尖尾鸭

Lesser Scaup Aythya affinis, Northern Pintail Anas acuta, and several sea ducks are showing troubling declines, but most geese are increasing dramatically and many ducks have held steady. 一些鸟类如针尾鸭和海鸭等的数量仍然在下降，但是大多数雁类的数量都有了明显增加，很多鸭子的数量也保持稳定。

bundled pintail speculum feather 尖尾鸭翠扎把

bundled pintail stiff black scapular 硬小湾扎把

White-bellied Pintail Green Pigeon 白腹针尾绿鸠

Yellow-bellied Pintail Green Pigeon 黄腹针尾绿鸠

The common, or northern, pintail (A. acuta), widespread in the Northern Hemisphere, is a long-distance flier; 飞行迅速，是受欢迎的猎禽。