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From: dmark@acsu.buffalo.edu (David Mark)
Newsgroups: rec.birds
Subject: Re: US Endemic Bird Species (Quiz)
Message-ID: <35834@eerie.acsu.Buffalo.EDU>
Date: 12 Sep 90 22:43:59 GMT
References: <34605@eerie.acsu.Buffalo.EDU> <1359@batman.tegra.COM> <57362@microsoft.UUCP>
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In article <57362@microsoft.UUCP> wolfd@microsoft.UUCP (Wolf DUBY) writes:
>Kirtland's Warbler, if it is still extant, is native to
>one grove of evergreens in the northern half of Michigan's
>lower peninsula.

I think there are about 200 pairs still.  And they nest in young Jack Pine
stands in two or a few counties in Michigan.  But, they spend the
winters in the Bahamas, and actually spend more of the year in the islands 
than in the Michigan pines.  So, they are not a US endemic.  They have been
seen, singing on territory, in Canada as well, but I think all known nests 
are from the USA.  But Kirtland's Warbler may be better thought of as
a Bahamas bird that flies north briefly to breed before heading home.

The question: other than the full endemics, what bird species have not been
known to breed outside the United States is interesting, and I
don't know the answer.  I think both of Bachman's birds (Warbler, Sparrow)
would qualify.  But there won't be many.

David Mark
dmark@acsu.buffalo.edu