Range map of White-rumped Black-tyrant (Knipolegus heterogyna)
Adapted from: BirdLife International. 2017. Knipolegus heterogyna (amended version of 2016 assessment). The IUCN Red List of Threatened Species 2017: e.T103683096A112475358. https://dx.doi.org/10.2305/IUCN.UK.2017-1.RLTS.T103683096A112475358.en. Downloaded on 05 July 2021.
Cephas