[cobirds] A new free download from the authors of The Warbler Guide helps age and sex West Coast warblers

A little late, but worth the wait!

http://blog.press.princeton.edu/2014/09/08/another-free-download-for-west-coast-warblers-from-the-authors-of-the-warbler-guide/?utm_source=twitterfeed&utm_medium=twitter

Scott Severs
Longmont
Sent via BlackBerry by AT&T

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