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An Falco severus [ 2] [ 3] [ 4] [ 5] in uska species han Aves nga ginhulagway ni Thomas Horsfield hadton 1821. An Falco severus in nahilalakip ha genus nga Falco , ngan familia nga Falconidae .[ 6] [ 7] Ginklasipika han IUCN an species komo diri gud kababarak-an .[ 1] Waray hini subspecies nga nakalista.[ 6]
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↑ 1.0 1.1
"Falco severus " . IUCN Red List of Threatened Species. Version 2012.2 . International Union for Conservation of Nature . 2012. Ginkuhà 24 Oktubre 2012 .
↑ (1996) , database, NODC Taxonomic Code
↑ Gill, Frank, and Minturn Wright (2006) , Birds of the World: Recommended English Names
↑ Dickinson, Edward C., ed. (2003) , The Howard and Moore Complete Checklist of the Birds of the World, 3rd edition
↑ (2005) , website, Zoonomen - Zoological Nomenclature Resource - 31 Marso 2005
↑ 6.0 6.1 Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist" . Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012 . CS1 maint: multiple names: authors list (link ) CS1 maint: extra text: authors list (link )
↑ ITIS: The Integrated Taxonomic Information System . Orrell T. (custodian), 26 Abril 2011
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