Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
IOC World Bird List (version 12.1), website (version 12.1)
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Dickinson, E. C., and J. V. Remsen Jr., eds.
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ITIS taxonomy is based on the latest scientific consensus available,
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However, it is not a legal authority for statutory or regulatory purposes.
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