Hummingbirds Na 2e

Paul A. Johnsgard's Hummingbirds of North America is the only book devoted to the identification, distribution, and biology - both individual and comparative - of all hummingbirds that breed in North America. First published in 1983, this acclaimed volume now has been revised and expanded to include twenty-five Mexican species, such as the long-billed starthroat and the fork-tailed emeralds, thereby more than doubling the species coverage of the original edition. Full species-by-species accounts survey the evolutionary history, anatomical and physiological specializations, and comparative ecology, behavior, and reproduction biology of this largest family of nonpasserine birds. Individual accounts are complemented by 24-full-color paintings. Including updated range maps, identification keys, and a bibliography that has been broadened to include literature on the little-known Mexican species, the book is both accessible to amateur birders and an authoritative volume for ornithologists.

Hummingbird facts accompany tales from various peoples of the Americas to give readers an informative and cultural look at these amazing birds.

The world of nature awaits you right in your own backyard. Search for fast-flying Hummingbirds. While on safari, learn how to identify and observe these birds and discover their interesting behaviors, life cycle, enemies, and defenses.

Swift and iridescent, hummingbirds are found only in the New World, and encompass an amazing variety of specializations. No other family of birds can lay claim to so many superlatives, including smallest size, most rapid wingbeat, and most specialized plumages. While many species can be attracted to feeding stations and backyard flower gardens, others can be found only in the wild. Paul A. Johnsgard's Hummingbirds of North America is the only book devoted to the identification, distribution, and biology -- both individual and comparative -- of all hummingbirds that breed in North America. First published in 1983, this acclaimed volume now has been revised and expanded to include twenty-five Mexican species, such as the long-billed starthroat and the fork-tailed emeralds, thereby more than doubling the species coverage of the original edition. Full species-by-species accounts survey the evolutionary history, anatomical and physiological specializations, and comparative ecology, behavior, and reproductive biology of this largest family of nonpasserine birds. Individual accounts are complemented by 24 full-color paintings. Including updated range maps, identification keys, and a bibliography that has been broadened to include literature on the little-known Mexican species, the book is both accessible to amateur birders and an authoritative volume for ornithologists.

Special edition of the Federal Register, containing a codification of documents of general applicability and future effect ... with ancillaries.

This best-selling majors ecology book continues to present ecology as a series of problems for readers to critically analyze. No other text presents analytical, quantitative, and statistical ecological information in an equally accessible style. Reflecting the way ecologists actually practice, the book emphasizes the role of experiments in testing ecological ideas and discusses many contemporary and controversial problems related to distribution and abundance. Throughout the book, Krebs thoroughly explains the application of mathematical concepts in ecology while reinforcing these concepts with research references, examples, and interesting end-of-chapter review questions. Thoroughly updated with new examples and references, the book now features a new full-color design and is accompanied by an art CD-ROM for instructors. The field package also includes The Ecology Action Guide, a guide that encourages readers to be environmentally responsible citizens, and a subscription to The Ecology Place (www.ecologyplace.com), a web site and CD-ROM that enables users to become virtual field ecologists by performing experiments such as estimating the number of mice on an imaginary island or restoring prairie land in Iowa. For college instructors and students.

A Visual Analogy Guide to Chemistry is the latest in the innovative and widely used series of books by Paul Krieger. This study guide delivers a big-picture view of difficult concepts and effective study tools to help students learn and understand the details of general, organic, and biochemistry topics. A Visual Analogy Guide to Chemistry is a worthwhile investment for any introductory chemistry student.