[TN-Bird] more cerulean warbler survey work in putnam county

From: "Stephen Stedman" <SStedman@xxxxxxxxxx>
To: "tn bird" <tn-bird@xxxxxxxxxxxxx>
Date: Tue, 25 May 2010 15:39:07 -0500
As reported earlier, the driving survey for Cerulean Warbler (CERW) that
I conducted in western Putnam County on May 21, 2010, resulted in a
total of 53 CERWs being counted; this total  compares interestingly with
the following totals on the same driving route for the last six years:
 

2004-47

2005-42

2006-28

2007-28

2008-36

2009-40

2010-53

 

Beginning in 2007, I have conducted standard PIF points counts at 50
points located the same part of Putnam County, with 38 of the points
occurring along the driving route on little traveled back roads of the
county (usually the roads are so narrow that the canopy cover is not
broken over them).  Here are CERW totals for the 50 point counts for the
past four years:

 

2007-32

2008-20

2009-26

2010-29

 

It's odd that one of the years (2007) when the lowest CERW total was
achieved on the driving route was also the year to produce the highest
total of CERWs on the point counts. I suppose this asymmetry points to
the fact that neither of these datasets is robust enough to give
reliable trend data about CERWs in western Putnam county. But each
method of counting shows that there are a fair number of CERWs in
western Putnam County.

 

Good bird counting,

 

Steve Stedman

Cookeville, TN

 


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[TN-Bird] more cerulean warbler survey work in putnam county

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