This discussion was first published as part of the 2013 Red List update, but remains open for comment to enable reassessment in 2014.
Angola Cave-chat Xenocopsychus ansorgei has a localised distribution on the escarpment of western Angola, where it is confined to four areas: eastern Namibe and Huila, N’Dalatando in Cuanza Norte, Mt Soque in Huambo and the Gabela area in Cuanza Sul (Dean 2000). The population size of this species has not been quantified, but it is described as locally common.
It is currently listed as Near Threatened under criterion B1ab(i,ii,iii) because it was thought to have a moderately small range. However, mapping of this species’s range shows that it is larger than previously, with an Extent of Occurrence (EOO) of 37,500km2. Also, its habitat is apparently not under immediate threat, and the population is thus suspected to be stable. As a result, this species should warrant downlisting to Least Concern, on the basis that its EOO does not approach 20,000km2 and it is not in continuing decline.
Further information is required on population size, trends and distribution of this species. Additional comments on the proposed downlisting are also welcome.
Dean, W. R. J. (2000) The birds of Angola. British Ornithologists’ Union: Tring, UK.