The Checklist of North and Middle American Birds is the official source on the taxonomy and nomenclature of birds found in this region, including adjacent islands. This publication is produced by AOS’s North American Classification Committee (NACC).

Access the complete list of species online

Checklist: 7th Edition and Supplements

The best way to access the most up-to-date version of the checklist is through the link above. However, the 829-page hardbound volume, published in 1998, may be purchased from Buteo Books or downloaded in PDF format (file size up to 13 MB):

Note that the documents above do not as yet incorporate changes made in subsequent annual supplements to the checklist:

Proposals

The NACC accepts proposals for taxonomic changes, English name changes, acceptance of distributional records, and other items related to the charge of the committee (see proposal guidelines below). The Committee discusses and votes on proposals 2–5 times per year, and the results are made public after the publication of each year’s supplement. In documenting species’ distribution, the Committee generally defers to state committees and to the American Birding Association for acceptance of records.

Current & Prior NACC Proposals
Guidelines for Submitting a Proposal

Subspecies

The last edition of the checklist to include subspecies was published in 1957 (5th edition). Although a complete revision of North American avian subspecies has not been done, we refer readers to Avibase and Birds of North America for more up-to-date treatments of subspecies. The Birds of North America project is systematically revising subspecies account for North American birds.

    From the field

    I’m part of a research team studying Black-throated Blue Warblers (BTBW) and other migratory songbirds at the Hubbard Brook Experimental Forest in the White Mountains of New Hampshire. My former Ph.D. advisor, Dick Holmes, started bird research at Hubbard Brook in 1969. The BTBW project began in 1982, making this one of the longest-running songbird population studies in the U.S. Our current research focuses on understanding how BTBW respond to lengthening growing or “greenHi folks! I’m Scott Sillett, Editor-in-Chief of The Auk: Ornithological Advances and a Research Wildlife Biologist at the Smithsonian Migratory Bird Center, part of the Smithsonian’s National Zoo and Conservation Biology Institute in Washington, DC. I study the population biology of migratory and resident birds. Stay tuned this week to learn about my research projects and about being a journal editor with the American Ornithological Society! #ornithology #birds #science #wildlife #conservationDo you want to help shape the future of AOS? Consider running for a spot on the AOS Council! Here's what current Elective Councilor Lauryn Benedict has to say about her experience so far. Nominations are due November 29!Climate change means spring is arriving earlier in the Arctic, but not all Arctic-breeding geese are affected the same way — some (such as the Barnacle Goose pictured here) successfully produce more offspring in years with earlier springs, but some produce fewer. New research published in The Auk suggests that this is because timing of spring has different effects on two different stages of the breeding cycle: the pre-laying, laying, and nesting phase, and the hatchling, fledgling, and juvenile phase. When snow melts earlier, more geese initiate a nest, their clutch size is larger, and the chance that the eggs will hatch increases. However, the second stage (hatchling, fledgling, and juvenile) is negatively affected by earlier springs, because food quality is already declining by the time the eggs hatch, creating a trophic mismatch. Photo by Michiel Boom. #ornithology #science #nature #wildlife #birds #geese #conservation #ecology #climatechange #arcticDo you want to help shape the future of AOS? Consider running for a spot on the AOS Council! Here's what current President-Elect Tom Sherry has to say about his experience so far. Nominations are due November 29!Thanks for letting me take over the AOS Instagram for a week! I hope I’ve given a good glimpse into my research and experiences. For all of the undergraduate ornithologists out there, I encourage you to strive for new horizons in your research! I plan on beginning a Master’s or PhD program in the fall of 2020 to continue my studies in ornithology. My future research interests include studying the genomic, behavioral, spatial, and morphological effects of hybridization and the formation of hybrid zones. #ornithology #science #wildlife #biology #birds #dogsofinstagram #womeninstem
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[Thanks, Angelica! If YOU are an AOS member and would like to be featured here for a week, please get in touch.]As a lover of the outdoors, I find myself looking for new experiences wherever I can. In the summer of 2018, I took part in a study-abroad intensive led by Dr. McRae and Dr. Kyle Summers at the Smithsonian Tropical Research Institute in Panama. I engaged in daily and nightly hikes through Pipeline Road and Barro Colorado Island and conversed with the resident scientists about their current studies and long-term research goals on Barro Colorado Island. My experiences in the rainforest encouraged me to pursue work in wildlife biology and conservation. #science #conservation #biology #wildlife #ecology #panama #womeninstem #ornithology
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[Our thanks to AOS member Angelica Reed (@angelicanreed), who's taking over this account for the week!]
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