The white-rumped swallow (Tachycineta leucorrhoa) is a species of bird in the Hirundinidae family. It was first formally described as Hirundo leucorrhoa by French ornithologist Louis Vieillot in 1817 in his Nouveau Dictionnaire d'Histoire Naturelle.
It is found in Argentina, Bolivia, Brazil, Paraguay, Peru, and Uruguay. Its natural habitats are dry savanna, subtropical or tropical seasonally wet or flooded lowland grassland, pastureland, and heavily degraded former forest.
In the episode of Family Guy "Brian Wallows and Peter's Swallows", the swallow is depicted as being a rare species, which is why Peter is forced to keep a nested swallow in his beard, which eventually lays eggs and leaves baby birds.