↑Banks, Richard C., C. Cicero, J. L. Dunn, A. W. Kratter, P. C. Rasmussen, J. V. Remsen, Jr., et al. (2003) Forty-fourth supplement to the American Ornithologists' Union Check-list of North American Birds, The Auk, vol. 120, no. 3
↑ 5.05.1Bisby 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