[TN-Bird] Lewis Couny: Lincoln's Sparrows

Two more Lincoln's Sparrows this morning (Oct 18 2006) at my place in  
western Lewis County.  I've been surprised by how common this species  
has proven to be here in the fall.  I have seen at least one on most  
days since late September, which seems to be considerably more than  
other people on the list have been reporting.  I've always been a  
spizophile and I might look a little bit harder for them than the  
average birder does, but that still doesn't seem to be enough to  
explain it.  They were the first Melospiza to arrive this autumn.   
Being curious about this, I pulled up the eBird map for Lincoln's  
Sparrows.  I'm not sure if this link will work; you may have to cut  
and paste it together to all be on one line:

http://www.ebird.org/go/GuideMe? 
src=changeDate&speciesCodes=linspa&getLocations=northAmerica&parentState 
=US-TN&reportType=species&monthRadio=1% 
2C12&bMonth=08&eMonth=11&bYear=1900&eYear=2006&continue.x=54&continue.y= 
9&continue=Continue

If that doesn't work you can navigate to the map from http:// 
www.ebird.org then go to "View and Explore Data" and continue from  
there.  Once you have generated the Lincoln's Sparrow page click the  
"map" tab.

This map shows a sharp boundary across the Southeastern US, westwards  
of which the species is common, eastwards it is scarce or absent.   
The line runs roughly from east Texas to NW Mississippi and east of  
the Mississippi River northeastwards to NW Indiana.  From what I have  
seen here, my location in the western Highland Rim appears to be just  
barely far enough west to catch these birds regularly.  The map shows  
no records in between me and Memphis; but there just haven't been  
very many observations submitted to eBird from those areas yet, or  
from anywhere else in the western Highland Rim.

Bill Pulliam
Hohenwald TN
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                  EXCELLENT MAP RESOURCES
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Tenn.Counties Map at http://www.lib.utexas.edu/maps/states/tennessee3.gif
Aerial photos to complement google maps http://local.live.com

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