Tham khảo Đại_bàng_đen_Buzzard

Tài liệu tham khảo

WikiPedia: Đại_bàng_đen_Buzzard http://www.ararajuba.org.br/sbo/ararajuba/artigos/... http://www.ararajuba.org.br/sbo/ararajuba/artigos/... http://www.birds.cornell.edu/clementschecklist/dow... http://elibrary.unm.edu/sora/Auk/v050n02/DJVU/P021... http://elibrary.unm.edu/sora/Auk/v050n02/p0212-p02... http://elibrary.unm.edu/sora/Condor/files/DJVU/v04... http://elibrary.unm.edu/sora/Condor/files/DJVU/v06... http://elibrary.unm.edu/sora/Condor/files/issues/v... http://elibrary.unm.edu/sora/Condor/files/issues/v... http://digitallibrary.amnh.org/dspace/bitstream/22...