Listing and Taxonomy

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

ABA Area Big Year Rules

An ABA Area Big Year shall start at 12:00 AM on 1 January of that year and end at 11:59 PM, 31 December of that year, based on the local time of the read more >>

ABA Area Big Year Rules2020-03-15T00:17:13-04:00

ABA Big Day Count Rules

A Big Day Count is a single-team effort in which the primary objectives are (1) to identify as many bird species as possible during a single calendar day and (2) to strive to have all team members read more >>

ABA Big Day Count Rules2020-03-15T00:18:37-04:00

ABA Area Big Year Rules

An ABA Area Big Year shall start at 12:00 AM on 1 January of that year and end at 11:59 PM, 31 December of that year, based on the local time of the read more >>

ABA Area Big Year Rules2020-03-16T10:30:48-04:00

ABA Area Reintroduced Indigenous Species

This list, which is currently under construction and not yet comprehensive, comprises ABA Area indigenous species for which there are reintroduced populations. For each species, the reintroduced populations are listed, as well as read more >>

ABA Area Reintroduced Indigenous Species2020-03-15T00:52:15-04:00

ABA Recording Rules and Interpretations

(version 2014b) Members who submit a life list and/or other lists to the American Birding Association’s “Listing Central” must observe the ABA Recording Rules. Many non-members who enjoy maintaining lists may also find read more >>

ABA Recording Rules and Interpretations2020-03-15T00:50:32-04:00