Describes bird anatomy and discusses such aspects of bird behavior as feeding, reproduction, nesting, defenses, migration, and bird communication.

Bird Behavior

Callahan, Philip S.

Four Winds Press

Tuning in to nature: Solar energy, infrared radiation, and the insect communication system

Science & Math

Astronomy & Space Science

Routledge & K.Paul

Recounts the author's twenty-five-year pioneering work in unraveling, through the study of technology as a guide to understanding nature, the mysteries of the infrared communications and navigational systems of insects

Tuning in to Nature: Solar Energy, Infrared Radiation,&the Insect Communication System

Religion & Spirituality

New Age & Spirituality

Devin-Adair Pub

Soul of the Ghost Moth

Insects and how they function

Holiday House

The evolution of insects,

A study of the behavior, flight, migration, and role of many birds of prey

The Magnificent Birds of Prey

Children's Books

Discusses the evolution, physiology, and behavior of birds.

Birds and How They Function

This book is the ultimate answer to the mystery of Phil Callahan. And it explains why civilization frequently engineers itself into a convulsion. For those big lessons learned in small situations on A Walk in the Sun are, in fact, bigger than life and history, and ultimately must be seen as the tuning fork Callahan invoked when he made his breakthrough discoveries. 
Discover with Callahan the secrets of nature as he hikes from the Orient to Europe and explores along the way in this fascinating travel diary.

A Walk in the Sun

Earth Sciences

Acres USA

In this book, Callahan shows how ''civilized'' insanity is turning Ireland away from her naturally harmonious, aesthetically pleasing, sound practices. Why remove a thatched roof to replace it with galvanized tin, only to increase the heating bill? With insightful wisdom, Callahan also ex¬amines the mysterious power of round towers, ''magic spots'' and healers such as Biddy Early. Callahan's study of hedgerows, booley people and Ireland's traditional form of agriculture can teach everyone the value of the land and why not to carelessly destroy it with toxic chemicals.

Nature's Silent Music

Acres U.S.A., Inc.

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Books by Callahan, Philip S.