Chimney Swifts are very small birds with slender bodies and very long, narrow, curved wings. They have round heads, short necks, and short, tapered tails. The wide bill is so short that it is hard to see.

Relative Size About the same size as a Cliff Swallow. between sparrow and robin Measurements Both Sexes

Length: 4.7-5.9 in (12-15 cm) Weight: 0.6-1.1 oz (17-30 g) Wingspan: 10.6-11.8 in (27-30 cm)

