Blue Swallow

分类位置

同属物种

安哥拉岩燕

Angola Swallow

家燕

Barn Swallow

Black-and-rufous Swallow

Black-and-rufous Swallow

Ethiopian Swallow

Ethiopian Swallow

Hill Swallow

Hill Swallow

洋燕 (洋斑燕)

Pacific Swallow

形态与习性

The blue swallow (Hirundo atrocaerulea) is a small bird within the swallow family which is in the order Passeriformes. Swallows are somewhat similar in habits and appearance to other aerial insectivores, such as the martins (also a passerine) and the swifts (order Apodiformes). It breeds in the Afromontane (from South Africa to Tanzania), wintering north of Lake Victoria. This bird breeds in montane grassland, preferring high rainfall, undulating areas. In winter it prefers open grassland, with