- American Ornithological Society (AOS; R.T. Chesser, et al., comps.). 2017. Fifty-eighth supplement to the American Ornithological Society's check-list of North American birds. Auk 134:751-773. DOI: 10.1642/AUK-17-72.1.
- Lepage, Denis. Avibase. Downloaded from https://avibase.bsc-eoc.org
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2016.
- Pyle, P., and D.F. DeSante. 2009. Updates to four-letter and six-letter alpha codes based on revisions by the American Ornithologists' Union in 2007-2008. North American Bird Bander 34:65-67.