↑American Ornithologists' Union (1957) , Check-list of North American Birds, 5th Edition
↑Short, Lester L. (1982) Woodpeckers of the World, Delaware Museum of Natural History Monograph Series, no. 4
↑ 5.05.1Short, Lester L. (1969) Taxonomic aspects of avian hybridization, The Auk, vol. 86, no. 1
↑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
↑Banks, R. C., R. W. McDiarmid, and A. L. Gardner (1987) Checklist of Vertebrates of the United States, the U.S. Territories, and Canada, Resource Publication, no. 166
↑ 10.010.1Bisby 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
