Clement, P.; Harris, A.; Davis, J. 1993. Finches and sparrows: an identification guide. Christopher Helm, London.
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Recommended citation
BirdLife International (2021) Species factsheet: Crithagra xanthopygia. Downloaded from
http://www.birdlife.org on 16/01/2021.
Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 16/01/2021.