^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/ (頁面存檔備份,存於網際網路檔案館) Retrieved August 25, 2021
^Clements, J. F.; Schulenberg, T. S.; Iliff, M. J.; Billerman, S. M.; Fredericks, T. A.; Gerbracht, J. A.; Lepage, D.; Sullivan, B. L.; Wood, C. L. The eBird/Clements checklist of Birds of the World: v2021.. 2021 [2022-09-15]. (原始內容存檔於2022-03-12).