An Campephilus principalis [ 2] [ 3] [ 4] [ 5] [ 6] Aves nga syahan ginhulagway ni Linnaeus hadton 1758. An Campephilus principalis in nahilalakip ha genus nga Campephilus familia nga Picidae .[ 7] [ 8] IUCN an species komo nangangarat-an duro .[ 1]
Ini nga species ginbahin ha masunod nga subspecies:[ 7]
C. p. bairdii C. p. principalis
↑ 1.0 1.1
"Campephilus principalis " . IUCN Red List of Threatened Species. Version 2012.2International Union for Conservation of Nature . Ginkuhà 24 Oktubre 2012 .Error: no |assessment_year= specified when using {{IUCN }}
↑ (1996) , database, NODC Taxonomic Code
↑ Gill, Frank, and Minturn Wright (2006) , Birds of the World: Recommended English Names
↑ Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes (2003) , Checklist of Vertebrates of the United States, the U.S. Territories, and Canada
↑ (2005) , website, Zoonomen - Zoological Nomenclature Resource, 2005.12.06
↑ (1996) , series, Federal Register, U.S. Fish & Wildlife Service (various authors)
↑ 7.0 7.1 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
