Petrochelidon is a genus of birds known as cliff-nesting swallows. The genus name Petrochelidon is from Ancient Greek petros, "rock", and khelidon, "swallow". The genus includes all of the five species of birds commonly called cliff swallow, and contains the following species:
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0