Integrated Taxonomic Information System (ITIS): Buteo oreophilus (TSN 558955)itis.gov. Viitattu 24.8.2012. (englanniksi)
iucnredlist.org
BirdLife International: Buteo oreophilusIUCN Red List of Threatened Species. Version 2014.3. 2014. International Union for Conservation of Nature, IUCN, Iucnredlist.org. Viitattu 18.2.2015. (englanniksi)