peterginsburg
Well-known member
I can't recall seeing it posted here previously (my apologies if it has) but there's a relatively newly published book on North American woodpeckers. It is the "Peterson Reference Guide to North American Woodpeckers" by Stephen A. Shunk ISBN: 978-0618739950. Reviews have been very positive so if they're a subject of much interest to you give it a look.
Peter
Peter