Songbirds of the West includes more than four dozen songbirds that occur within the western United States. The majority are found in America's western National Parks, especially in parks where the author worked for more than a quarter of a century. Big Bend National Park is where he encountered Black-capped and Gray Vireos, Vermilion Flycatchers, Curve-billed and Crissal Thrashers, Hepatic and Summer Tanagers, and Black-vented, Hooded and Scott's...