Date: 9/4/19 8:46 am
From: Robert Righter <rorighter...>
Subject: [cobirds] Another excellent Hummingbird Guide
Hi

Kaufman Field Guide to Advanced Birding is an excellent guide. There is over 30 pages devoted to just the 8 most challenging hummingbird species. Also a few years ago John Vanderpole published an excellent video guide, along with John Dunn, on North American Hummingbirds

Cheers,

Bob Righter
Denver, CO


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