Range map of Black-collared Swallow (Pygochelidon melanoleuca)
Adapted from: BirdLife International. 2017. Pygochelidon melanoleuca (amended version of 2016 assessment). The IUCN Red List of Threatened Species 2017: e.T22712140A118843844. https://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T22712140A118843844.en. Accessed on 02 February 2022.
Cephas