纯色岩燕

分类位置

同属物种

岩燕

Eurasian Crag-Martin

Large Rock Martin

Large Rock Martin

形态与习性

The dusky crag martin (Ptyonoprogne concolor) is a small passerine bird in the swallow family. It is about 13 cm (5 in) long with a broad body and wings, and a short square tail that has small white patches near the tips of most of its feathers. This martin has sooty-brown upperparts and slightly paler underparts. The two subspecies are resident breeding birds in South Asia from the Indian subcontinent to southwestern China and the northern parts of Thailand, Vietnam and Laos. This martin nests