Hello, Birders.
 
As Allan Burns noted a little while ago, practically everybody seems to have 
seen a Broad-winged Hawk in eastern Colorado in the past week or so. So, for 
yet another datum, Hannah and I saw an adult at the base of Gregory Canyon, 
Boulder County, early yesterday evening, Tuesday, May 4th.
 
To sorta follow up on Allan's point (..."but a further contribution to the 
trend"), a great way to contribute to our understanding of, say, the spring 
Broad-wing flight in Colorado is to enter your bird notes into eBird 
(http://ebird.org).
 
For example, here's a map of eBird records of Broad-winged Hawks in the Front 
Range region:
 
http://tinyurl.com/29pyke9
 
You can click on each occurrence (a red or yellow stickpin) and get details on 
the sighting. Also, if you play around with the tabs, you can generate graphs 
and charts that bring out some really interesting patterns in the data. For 
example, compare the Colorado plot of Broad-wing abundance through the year 
with the continental plot for abundance through the year. The differences are 
striking.
 
-------------------------------
 
Ted Floyd
Editor, Birding
 
Follow Birding magazine on Twitter: http://twitter.com/BirdingMagazine
 
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