Suggested citation for the current version of the Clements Checklist, including the August 2021 Updates and Corrections:
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/
Three checklists are available. The first is the 2021 edition of the Clements Checklist (Clements Checklist v2021); the second is the 2021 edition of the eBird taxonomy (eBird v2021); and the third is the “master” or integrated checklist, which includes all entries in both the Clements Checklist and the eBird taxonomy.
- Clements Checklist v2021 (3.6 MB Excel spreadsheet or 6.8 MB CSV file) Includes species, groups, and subspecies, with brief range descriptions.
- eBird Taxonomy v2021 (1.1 MB Excel spreadsheet and 2 MB CSV file). Includes all categories that are reportable in eBird (including all taxa except subspecies from eBird/Clements Checklist) and is formatted with additional fields from eBird. Details of the eBird update will be posted soon on the eBird homepage.Â
- eBird/Clements Checklist v2021 (3.8 MB Excel spreadsheet or 7.2 MB CSV file) Combines all taxa from the Clements Checklist and all additional categories from the eBird taxonomy, with brief range descriptions for all taxa.
