N any of the covert feathers of a bird covering the bases of the tail feathers 尾复羽
bundled bustard tail covert石脯花片扎把
bundled common crane tail covert雌鸥大刀扎把
bundled d bustard tail covert石脯花片扎把
spectacled teal lateral tail covert灰银边毛
ectacled teal lateral tail covert灰银边毛
N（名词） any of the covert feathers of a bird covering the bases of the tail feathers 尾复羽