CLEMENTS, J. F; SCHULENBERG, T. S; LLIFF, M. J. The Clements Checklist, verze 6.5 [online]. Cornell University, Lab of Ornithology, Ithaca, NY, USA, rev. 2010 [cit. 2011-05-10]. Dostupné online. (anglicky)
iucnredlist.org
IUCN Red List of Threatened Species [online]. International Union for Conservation of Nature and Natural Resources, rev. 2010 [cit. 2011-05-10]. Dostupné online. (anglicky)
web.archive.org
Essortment: Partridge [online]. Demand Media, Inc., New York, NY, USA [cit. 2011-05-10]. Dostupné v archivu pořízeném dne 2011-04-26. (anglicky)