Off topic, my apologies to the list, but it's something I've been curious about
and thought others may be as well. See:
http://www.uwsp.edu/geo/faculty/heywood/geog358/extinctb/ExtinctbL.htm
I had no idea.
To keep this short I will just cite the site this page came from, which has
some fascinating insights into extinction:
http://www.uwsp.edu/geo/faculty/heywood/geog358/endanger.htm#birds
Sorry for such a downer post at this time of year; best to all on the upcoming
CBCs , and on into 2008,
John Fox
Arlington