A large swift with long, curved, and pointed wings. The tail is slightly notched, but often appears square. It has a tiny, almost invisible bill and very small feet.
Larger than a Vaux's Swift, slightly smaller than a Purple Martin.between sparrow and robin
- Both Sexes
- Length: 7.1-7.2 in (18-18.4 cm)
- Weight: 1.4-1.9 oz (40-55 g)