Harriers of the World

Author: Robert E. Simmons
Publisher: Oxford University Press, USA
ISBN: 9780198549642
Category : Science
Languages : en
Pages : 388

Book Description
Harriers are a charismatic group of birds of prey with a worldwide distribution that have long fascinated bird watchers and scientists. Here for the first time the biology of the world's harriers is treated within one over, in readily accessible language. There are detailed comparisons of northern and southern species, descriptions of mating systems and population dynamics life histories, and insights into the selection pressures shaping the birds' life histories. The author addresses such questions as how females choose partners against their apparent self- interest, how they adjust to prevailing circumstances to produce the perfect clutch size, and what underlies variations in size dimorphism and copulation patterns. New information resulting from a DNA examination of the group reveals three new harrier species and allows construction of a new phylogeny of the harriers. The author's twin brother brings the book to life by fine original line drawings of these impressive birds. It will be a treat for all raptor biologists, amateur raptophiles, and behavioral ecologists interested in birds of prey.

The World's Fastest Military Airplanes

Author: Michael Burgan
Publisher: Capstone
ISBN: 9780736805681
Category : Juvenile Nonfiction
Languages : en
Pages : 54

Book Description
Explains how jet planes operate and some of the uses that the military makes of them, describing the design and functioning of such examples as the F-15, the AV-8B Harrier, and the F-22 stealth plane.

Jane's All the World's Aircraft

Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 930

Book Description

Runner's World

Author:
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ISBN:
Category :
Languages : en
Pages : 136

Book Description
Runner's World magazine aims to help runners achieve their personal health, fitness, and performance goals, and to inspire them with vivid, memorable storytelling.

Raptors

Author: Keith L. Bildstein
Publisher: Cornell University Press
ISBN: 150170785X
Category : Nature
Languages : en
Pages : 302

Book Description
Raptors are formally classified into five families and include birds—such as eagles, ospreys, kites, true hawks, buzzards, harriers, vultures, and falcons—that are familiar and recognized by many observers. These diurnal birds of prey are found on every continent except Antarctica and can thrive in seemingly inhospitable spots such as deserts and the tundra. They have powerful talons and hooked beaks for cutting and tearing meat, and keen binocular vision to aid in their hunting prowess. Because of their large size, distinctive feeding habits, and long-distance flight patterns, raptors intrigue humans and have been the subject of much general interest as well as extensive scientific research. Keith L. Bildstein has watched and studied raptors on five continents and is well prepared to explain their critical importance, not only as ecological entities but also as inspirational tokens across natural and human-dominated landscapes. His book offers a comprehensive and accessible account of raptors, including their evolutionary history, their relationships to other groups of birds, their sensory abilities, their general natural history, their breeding ecology and feeding behavior, and threats to their survival in a human-dominated world. Biologically sound but readable, Raptors is a nontechnical overview of this captivating group. It will allow naturalists, birders, hawk-watchers, science educators, schoolchildren, and the general public, along with new students in the field of raptor biology, to understand and appreciate these birds, and in so doing better protect them.

Running Times

Author:
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ISBN:
Category :
Languages : en
Pages : 80

Book Description
Running Times magazine explores training, from the perspective of top athletes, coaches and scientists; rates and profiles elite runners; and provides stories and commentary reflecting the dedicated runner's worldview.

World's Work

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ISBN:
Category :
Languages : en
Pages : 644

Book Description

World's Work

Author: Henry Norman
Publisher:
ISBN:
Category :
Languages : en
Pages : 732

Book Description

RUNNING FROM INSIDE OUT

Author: Jerry Lee
Publisher: 神才
ISBN:
Category : Health & Fitness
Languages : en
Pages : 124

Book Description
Enthusiastic Hiker and Trail Runner Jerry has participated in trail running events for more than twenty years across the United States, Canada and Southeast Asia. He has a passion for trail running, approaching nature and exploring the world's mountains, forests and fields. He has journeyed from Hawaiian volcanoes to the American Rocky Mountains; from Canadian mountains to the jungles of Taiwan, Vietnam, Malaysia, and other Southeast Asian countries. He also led students from the Hawaii Pacific State University Mountaineering Society in volcanic and mountain in-depth trail running activities. Appreciating the beauty and majesty of nature and inviting my friends to explore it with me gave me the greatest sense of achievement. "The beauty of nature is like the sun in the mountains; because you can't absorb all the sun on your own, so share it with everyone!" Mother Nature is always there waiting for you. As long as you are willing to return to the mother's arms, she will provide endless positive energy. Why do I like climbing? 1. To get to know myself better, 2. To see the beauty of heaven and earth, 3. To meet friends who love nature and extend the spirit of adventure challenges to all corners of the world. This book mainly addresses my first-hand experience of exploring the mountains and waters of eight countries, including the United States, Canada, Japan, Thailand, Malaysia, Indonesia, Singapore, Vietnam, through independent travel, trail exploration, national Hash trail running, foreign mountaineering trail competitions, as well as promoting and organizing Crazy Beer Trail running activities. I hope to introduce more friends to hiking, promote international cultural sports exchange and finally share the experience of years of trail nd mountain running. I draw on inner strength, experiencing the challenges of nature, to achieve the best balance of mind and body. Running from the inside out!!!

Migrating Raptors of the World

Author: Keith L. Bildstein
Publisher: Cornell University Press
ISBN: 9780801441790
Category : Nature
Languages : en
Pages : 356

Book Description
"Keith L. Bildstein has studied migrating raptors on four continents and directs the conservation science program at Hawk Mountain Sanctuary, Pennsylvania, the world's first refuge for migratory birds of prey. In this book, he details the stories and successes of twelve of the world's most important raptor-viewing spots, among them Cape May Point, New Jersey; Veracruz, Mexico; Kekoldi, Costa Rica; the Strait of Gibralter, Spain; and Elat, Israel."--BOOK JACKET.