This abridgment focuses on the North American birds most likely to be seen and features an informative introduction, and illustrated descriptions.

A simplified guide to the common wildflowers of northeastern and northcentral North America.

Describes and illustrates shells found in North America, including gastropods, chitons, and bivalves.

Discusses 120 of the most common caterpillars and the adult butterflies and moths they become and gives advice on how to raise caterpillars to adults.

A comprehensive field guide that uses an innovative Sound Index to allow readers to quickly identify unfamiliar songs and calls of birds in western North America. Bird songs and calls are at least as important as visual field marks in identifying birds. Yet short of memorizing each bird's repertoire, it's difficult to sort through them all. Now, with the western edition of this groundbreaking book, it's possible to visually distinguish bird sounds and identify birds using a field-guide format. At the core of this guide is the spectrogram, a visual graph of sound. With a brief introduction to five key aspects--speed, repetition, pauses, pitch pattern, and tone quality--readers can translate what they hear into visual recognition, without any musical training or auditory memorization. The Sound Index groups similar songs together, narrowing the identification choices quickly to a brief list of birds that are likely to be confused because of the similarity of their songs. Readers can then turn to the species account for more information and/or listen to the accompanying audio tracks available online. Identifying birds by sound is arguably the most challenging and important skill in birding. This book makes it vastly easier to master than ever before.

A fascinating look at what birds do and why they do it Both casual and serious birdwatchers can take their skills to the next level with this detailed consideration of bird behavior. This book makes it possible to move beyond identifying birds to understanding some of the underpinning and meaning to what birds do, how they do it, and why they do it. Written in an easy-to-understand style, with an abundance of photos illustrating the behaviors, the book shows how flight, molt, migration, feeding, predation, social behavior, courtship, and nesting shape birds' behaviors. Birds are everywhere, and easy to observe; this introduction to elements of bird behavior will connect readers more intimately with these remarkable and beguilingly perceptive animals.

A simplified field guide to the common insects of North America.

Ecology.

Offers concise descriptions and detailed illustrations of the diverse mammal species and inlcudes specific guidelines on techniques of field identification.

41 day hikes and overnight trips in Maryland, Pennsylvania, New Jersey, and New York Complete with elevation profiles, topographic maps, descriptions of terrain, and notes on landmarks, side trails, and shelters Includes directions to trailheads and information on available parking Completely revised and updated to reflect recent trail changes Indexes sort the hikes by difficulty and length 0 false 18 pt 18 pt 0 0 false false false /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-ascii-font-family:Cambria; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Cambria; mso-hansi-theme-font:minor-latin;}