A Field Guide to Bird Songs is the best-selling collection of bird songs ever recorded. It includes the songs and calls of 267 species - all the most common and vocal birds found east of the Rockies. Organized as a companion to Roger Tory Peterson's Field Guide to the Birds of Eastern and Central North America, fifth edition, this is the "birder's bible" of bird song.

A portable, comprehensive field guide to North American butterflies--brimming with concise descriptions and stunning color photographs, and designed to fit into your back pocket--from the go-to reference source for over 18 million nature lovers.

This streamlined volume contains: a simple field guide identifying 80 of the most widespread butterflies in North America and a complete overview of observing butterflies, covering basic identifying field marks and practical tips for observing and distinguishing different butterflies.

This pocket guide is packed with information; bright...