The Bahama Swallow is an endangered species threatened by logging and planned development. It is a medium sized swallow with green upper parts, blue wings and tail and white underparts. Females are duller with white underparts that are less pure than the male. Adults can be distinguished from Tree Swallows (Tachycineta bicolor) and other similar species by the deeply forked tail.
Very little is understood about the natural history of this rare species, which is entirely restricted to The Bahamas.