Cave Swallows have a cylindrical body with long, pointed wings and a square-tipped tail that sometimes shows a slight notch. The bill is very short and the feet very small.
Slightly larger than a Bank Swallow, smaller than a Barn Swallow.sparrow-sized or smaller
- Both Sexes
- Length: 5.5 in (14 cm)
- Weight: 0.6-0.9 oz (17-25 g)
- Wingspan: 13.0 in (33 cm)