As Dan Airola said in response to my question in an earlier topic, purple martin Breeding Bird Survey results have been updated thru 2004. However, the summer distribution and population trend maps have been updated only thru 2003. Please see the following pages from the site which probably was down when Dan tried to access them.
Purple Martin BBS Summer Distribution Map, 1994-2003:
http://www.mbr-pwrc.usgs.gov/bbs/htm03/ ... a06110.htm
Note; if you prefer to view the shading in red, substitute "red" for "blue" in the above address.
Purple Martin BBS Trend Map, 1966-2003:
http://www.mbr-pwrc.usgs.gov/bbs/htm03/ ... r06110.htm
Tony Berg
Purple Martin Forum
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