pteryla femoralis股羽区
pteryla alaris翼羽区
pteryla spinalis背羽区
pteryla ventralis腹羽区
pteryla caudalis尾羽区
pteryla cruralis胫羽区
N（名词） any of the tracts of skin that bear contour feathers, arranged in lines along the body of a bird 羽管 [ornithol]