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.
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.
Circadianreflections Blog 