Aves > Passeriformes > Hirundinidae > Hirundininae > Petrochelidon > Petrochelidon pyrrhonota > Petrochelidon pyrrhonota minima

subspecies: Petrochelidon pyrrhonota minima (Cliff Swallow, )

Annotation: Not included in treatments by Peters (1960) and Clements (2000), but included in treatments by Howard and Moore (2003) and BNA.