The geographical area of the ABA Checklist Area is the 49
continental United States, Canada, the French islands of St.
Pierre and Miquelon, and adjacent waters to a distance of 200
miles from land or half the distance to a neighboring country,
whichever is less. The latitude of the Mexican boundary on the
coast is the southern offshore limit. Excluded by these
boundaries are Bermuda, the Bahamas, Hawaii, and Greenland. -- American Birding Association: The 1997 List Report
The ABA Checklist Area is included within the larger AOU Check-list area for North America.
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