no-heard-only= only includes birds identified by sight.

PLEASE NOTE

The ABA Area now includes Hawaii (ABA Checklist update is here >>). Please do not enter year or month list totals in the ABA Area before 2016.

ABA Continental is the ABA area by pre-2016 definition, that is, without Hawaii.

How do I enter my list totals?

AT stands for All Territories & Provinces Added Together, and is determined by adding one’s life lists for each of Canada’s provinces and territories, 13 areas in all, whether or not you have reached the reporting threshold in all (or any) of them.

TT (Total Ticks) is the same principle, but on a wider scale. It includes all the states, provinces, and territories that lie within the ABA Area (including Hawaii, Washington DC and the French islands of St. Pierre et Miquelon, which are in the ABA Area).

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- Nate Swick

The same batch of continuing ABA rarities persists into another week, headlined by the ABA 1st recor [...]

- Ted Floyd

The ABA Blog has been in existence for almost 8 years, and there’s a lot of good content back in the [...]

- Nate Swick

It’s been a long time coming, but the ABA is excited to announce a new and improved homepage that wi [...]

- The Eyrie

Young birder Tommy Quarles shares his memories of 2017 Camp Avocet! [...]

- The Eyrie

From American Dippers to White-tailed Ptarmigan to new friends and new birding skills, a young birde [...]

- The Eyrie

As we flew through a gap in the lush, green mountains to land on a thin airstrip, I anticipated the [...]

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