Taxon - Links and literature
Clements, J. F.: eBird/Clements checklist of birds of the world 6.7, Cornell Lab of Ornithology [as Buteo oreophilus oreophilus]Data retrieved on: 7 April 2013
Clements, J. F.: eBird/Clements checklist of birds of the world 6.7, Cornell Lab of Ornithology [as Buteo oreophilus oreophilus]