Pigeons are small birds found in The Sims 3: Late Night, The Sims 3: Pets and The Sims Medieval. Pigeons are present in The Sims 2 as a neighborhood decoration, but do not actually appear in-game.
In The Sims 3: Late Night, pigeons are often seen outside the City Hall in Bridgeport, though they do not have a great impact on gameplay, as they cannot be interacted with, and wander around aimlessly.
Pigeons are a common pet in the bird collection in The Sims 3: Pets, although the pigeons outside the Bridgeport City Hall cannot be collected, as they are only considered a special effect by the game.
In The Sims Medieval, pigeons are equivalent to the telephone or email, allowing Sims to contact one another by tying notes to them.