| Pygochelidon | |
|---|---|
| Blue-and-white swallow (Pygochelidon cyanoleuca) | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Hirundinidae |
| Genus: | Pygochelidon S.F. Baird, 1865 |
| Type species | |
| Hirundo cyanoleuca blue-and-white swallow Vieillot, 1817 | |
Pygochelidon is a genus of birds in the swallow family Hirundinidae that occur in the Neotropics.
The genus Pygochelidon was introduced in 1865 by the American naturalist Spencer Fullerton Baird with the blue-and-white swallow as the type species. The name combines the Ancient Greek pugē meaning "rump" with khelidōn meaning "swallow".
This genus was formerly treated as a junior synonym of the genus Notiochelidon. It was resurrected to contain a clade of two species based on a genetic study published in 2005.
The genus contains the following two species:
| Image | Common name | Scientific name | Distribution |
|---|---|---|---|
| Blue-and-white swallow | Pygochelidon cyanoleuca | Breeds from Nicaragua south throughout South America, except in the deserts and the Amazon Basin; southern race migratory, wintering as far north as Trinidad. | |
| Black-collared swallow | Pygochelidon melanoleuca | Argentina, Bolivia, Brazil, Colombia, French Guiana, Guyana, Suriname, Venezuela, and possibly Paraguay. |