Ini nga species ginbahin ha masunod nga subspecies:[4]
- P. c. canus
- P. c. dedemi
- P. c. guérini
- P. c. hessei
- P. c. jessoensis
- P. c. kogo
- P. c. robinsoni
- P. c. sanguiniceps
- P. c. sobrinus
- P. c. sordidior
- P. c. tancolo
- ↑ 1.0 1.1
"Picus canus". IUCN Red List of Threatened Species. Version 2012.2. International Union for Conservation of Nature. 2012. Ginkuhà 24 Oktubre 2012.
- ↑ Gill, Frank, and Minturn Wright (2006) , Birds of the World: Recommended English Names
- ↑ (2005) , website, Zoonomen - Zoological Nomenclature Resource, 2005.12.06
- ↑ 4.0 4.1 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
