Cook's Swift has long, sickle-shaped wings and a tail that closes to a needle-like point. It flies high over mountains, woodland, towns, and coasts, catching insects in the air.
The wings are long and sickle-shaped. Its deeply forked tail often closes to a needle-like point; the throat is grey and a narrow white rump band is visible.
It flies high in flocks over mountains, towns, and coasts, catching insects on the wing. Woodland and dense habitats are also listed for the species.
An extinction-risk assessment has not been added yet.