Range map of Whistling Warbler (Catharopeza bishopi)
Adapted from: BirdLife International. 2020. Catharopeza bishopi. The IUCN Red List of Threatened Species 2020: e.T22721755A180058781. https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T22721755A180058781.en. Downloaded on 15 August 2021.
Cephas