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Clements Checklist resource
Last updated 4 months ago
The Cornell Laboratory of Ornithology uses science to understand the world, to find new ways to make conservation work, and to involve people who share our passion. For now the primary contribution is the Clements Checklist. This is the most established resource on the taxonomy and biogeography of birds for the birding community, The Clements Checklist is the official world checklist of the American Birding Association (ABA) and is used as the authoritative reference in the birding competitions and listing activities of this preeminent North American organization for serious birders. Last indexed March 25, 2015