The 2021 AOS Supplement is out!

Every summer, birders anxiously await publication of the “Check-list Supplement” by the American Ornithological Society’s Committee on Classification and Nomenclature of North and Middle American Birds (a.k.a. the NACC). The supplement (available linked to here eventually) details revisions to the NACC’s Check-list. Here's a rundown of the more significant revisions.

The 2021 AOS Supplement is out!2021-07-07T16:46:37-04:00

2021 AOS Classification Committee Proposals, Parts 2 & 3

There are few constants in these helter-skelter times, but the birding world can always depend on the bird taxonomy proposals submitted to the American Ornithological Society’s North and Middle American Classification Committee. And read more >>

2021 AOS Classification Committee Proposals, Parts 2 & 32021-06-01T10:35:10-04:00

2021 AOS Classification Committee Proposals, Part 1

There are few constants in these helter-skelter times, but the birding world can always depend on the bird taxonomy proposals submitted to the American Ornithological Society’s North and Middle American Classification Committee. And read more >>

2021 AOS Classification Committee Proposals, Part 12021-02-10T12:08:00-05:00

The 2020 AOS Supplement is out!

Every summer, birders anxiously await publication of the “Check-list Supplement” by the American Ornithological Society’s Committee on Classification and Nomenclature of North and Middle American Birds (a.k.a. the NACC). The supplement details revisions to the NACC’s Check-list.

The 2020 AOS Supplement is out!2020-07-07T16:29:22-04:00

2020 AOS Classification Committee Proposals, Parts 2 and 3

We got another big batch of new bird taxonomy proposals submitted to the American Ornithological Society’s North and Middle America Classification Committee for 2020. The AOS NMACC is the volunteer group of ornithologists who make the split, lump, and name-change decisions that influence the ABA Checklist and our field guides.

2020 AOS Classification Committee Proposals, Parts 2 and 32020-06-29T14:44:25-04:00

2020 AOS Classification Committee Proposals, Part 1

Here is the first rundown of the new bird taxonomy proposals submitted to the American Ornithological Society’s North and Middle America Classification Committee for 2020.

2020 AOS Classification Committee Proposals, Part 12020-03-18T16:02:00-04:00
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