Small T-shaped swift with short buff-colored back end. Back and back of wings blue-black. Seen in groups of 1000. Descends to nest in hollow dead palms. | ||||||
A small brown swift with contrasting browns on top half (head and mantle darker). Compare to Vaux's Swift and Chimney Swift. Chapman's Swift as recently lumped with Amazonian Swift of the western Amazon basin. | ||||||
Uniformly grey from below with light grey rump, and darker on back. Note wing shape and square tail. | ||||||
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Austral migrant from east central South America to north South America. Note uniform brown and short square tail. | ||||||
A uniformly colored small swift which migrates from eastern North America, passing quickly through Central America, to South America. Vaux's Swift is similar, but has a paler throat and rump, and stops its migration in Central America. | ||||||
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Northern migrant. Migrates from northwest United States and southwest Canada to Central America and the northernmost parts of South America. Similar to Chimney Swift, but note pale throat and rump. | ||||||
