"A superb guidebook for amateur naturalists, students in a variety of ecology-oriented courses, and gardeners who wish to assess new species."—American Hortic

The most comprehensive field guide available to the Mid-Atlantic region of the United States--a portable, essential companion for visitors and residents alike--

This field guide covers 120 species of butterflies that can be found in the mid-Atlantic region. For each species, color photographs show the key field marks an

A spectacular field guide to the many fascinating creatures of the ocean world algon the norhteaster coast of the United States and the Maritime Provinces of Ca

This is the most comprehensive and up-to-date guide to the wildlife of Pennsylvania, New Jersey, Delaware, Maryland, Virginia, and West Virginia. Approximately