Audubon Magazine has an article on 40 top American Birding Trails by Kenn Kaufman. It was originally published in July- August 2008. It includes Birding sites throughout the U.S. Here is the link to the article.
Posted by: Sandy Steinman | May 13, 2013
Forty Top U.S. Birding Trails
Posted in Birds | Tags: Kenn Kaufman, Top American Birding Trails
Natural History Wanderings 
This is great thanks for posting
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By: sunmallia on May 14, 2013
at 5:08 PM
Reblogged this on Circadianreflections Blog and commented:
This is a great resource to have. There are 83 locations in California alone! I doubt I’ll bird them all in my lifetime, but I’ll have fun trying.
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By: circadianreflections on May 14, 2013
at 3:07 PM