[TN-Bird] Re: mobs of martins
- From: Bill Pulliam <bb551@xxxxxxxxxxxxx>
- To: TN-Bird <tn-bird@xxxxxxxxxxxxx>
- Date: Tue, 1 Aug 2006 18:16:36 -0500
Purple Martins gather in large post-breeding roosts this time of
year. You can actually see these birds on the weather radar at dawn
as they disperse from the roosts, showing up as very impressive
rapidly-expanding doughnuts. If you are up before 6:30 or 7:00 in
the morning try this link for a good radar loop that has been showing
several martin roosts recently, especially a huge one east of
Florence AL along the Tennessee River:
http://www.srh.noaa.gov/ridge/radar_lite.php?
rid=ohx&product=N0R&loop=yes
A sample radar image from North Carolina is here:
http://www.purplemartinroost.com/images/doppler.jpg
General information on martin roosts is here:
http://www.purplemartin.org/roost/
Bill Pulliam
Hohenwald TN
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