Audubon Field Guide to ButterfliesButterflies are among the natural world's most colorful and intriguing creatures, so what could be more useful than a handy field guide with more than 1,000 photographs of all the butterflies of North America north of Mexico, including all true butterflies, the most common skippers, and many migrants and strays. The species account for each butterfly provides measurements, descriptions of each stage of the life cycle, and information on coloring or