Southeastern Arizona is one of the premier birding spots in the United States - and rightly so with its many famous "Mexican" species (Trogons, Becards, Tyrrannulets, and lots of hummingbirds, etc.). It's a magical place - one of my favorite haunts. And this guide is truly the best for planning trips and finding birds. I can't provide enough accolades about the book, or about Southeastern Arizona!