- a classic World bird (Delichon urbica) having blue-black plumage, white rump and underparts, and a forked tail. Also called martlet.
- A migratory passerine bird associated with the swallow household, Delichon urbicum.
- a standard European swallow (Hirundo urbica). It offers feathered legs, and builds its nests of mud contrary to the walls of buildings. Called in addition residence swallow, and window martin.
- typical little European martin that creates nests underneath the eaves of homes