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

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 (thereby excluding Hawaii, but including Washington DC and the French islands of St. Pierre et Miquelon, which are in the ABA Area).

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- Nate Swick

Feeding birds is aften referred to as the “gateway drug” to birding, and it can be dangerous busines [...]

- Nate Swick

The Peregrine Fund, a non-profit organization with a mission to protect birds of prey and their habi [...]

- Nate Swick

The early part of migration continues, and the listservs are packed with various FOYs and FOSs and o [...]

- The Eyrie

At the beginning of this year, I remembered missing the chance to spot a Snowy Owl when the bird sto [...]

- Jacob Gorneau

Note: Although this may not seem to be a relevant post on The Eyrie, I thought it would be a good id [...]

- Jacob Gorneau

Ten Thousand Birds: Ornithology Since Darwin, by Tim Birkhead, Jo Wimpenny, and Bob Montgomerie Prin [...]

ABA Marketplace

The Most Interesting Birds Make for a Most Interesting Visit. North Dakota is in the middle of the C [...]

For sale - digiscoping adapter for Vortex Razor HD 65/85 mm scopes, including the separate PS-100 ad [...]

BA (black armored), strap, original box and leather case. Lightly used. Optics in excellent like-new [...]