''The Clements Checklist of Birds of the World'' is a book by

Jim Clements James Franklin "Jim" Clements (October 31, 1927 – June 9, 2005) was an American ornithologist, author and businessman. He was born in New York, United States. He married Mary Norton and they had two sons. His second marriage, which lasted 14 ...

which presents a list of the bird species of the world. The most recent printed version is the sixth edition (2007), but has been updated yearly, the last version in 2022, and is published by

Cornell University Press The Cornell University Press is the university press of Cornell University; currently housed in Sage House, the former residence of Henry William Sage. It was first established in 1869, making it the first university publishing enterprise in th ...

. Previous editions were published by the author's own imprint, Ibis Publishing. The

Cornell Lab of Ornithology The Cornell Lab of Ornithology is a member-supported unit of Cornell University in Ithaca, New York, which studies birds and other wildlife. It is housed in the Imogene Powers Johnson Center for Birds and Biodiversity in Sapsucker Woods Sanctuar ...

has provided annual updates since then, usually in August, and the most recent version is available online in several formats.Downloadable Checklist , Clements Checklist
/ref> These updates reflect the ongoing changes to bird taxonomy based on published research. ''Clements'' is the official list used by the

American Birding Association The American Birding Association (ABA) is a nonprofit organization, founded in 1969, dedicated to recreational birding in Canada and the United States. It has been called "the standard-bearer for serious birding in North America." Originally con ...

for birds globally.

eBird eBird is an online database of bird observations providing scientists, researchers and amateur naturalists with real-time data about bird distribution and abundance. Originally restricted to sightings from the Western Hemisphere, the project ...

also uses the ''Clements'' checklist as the base list for it
eBird taxonomy
which in addition to species includes hybrids and other non-species entities reported by birders.

References

External links

Further information at Cornell University Press website

Cornell Lab of Ornithology
Ornithological checklists {{bird-book-stub