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Flight Strategies of Migrating Hawks

Hawks fly at very high altitudes, sometimes over water, and thus their flight behavior and migration patterns are extremely difficult to study. Now, based on nearly ten years of research, this book provides the most complete analysis to date of how hawks migrate. Paul Kerlinger has employed both direct observations and radar techniques to obtain a much more accurate understanding of the migratory behavior of hawks and the "decisions" they make in flight. And, he has integrated data on the flight behavior of raptors in general with information about their ecology, physiology, evolution, and nonmigratory behavior. Kerlinger begins with an overview, discussing ecology and geography, research methods, natural history, and evolution, and atmospheric structure. He then addresses specific aspects of flight behavior: aerodynamics, morphology, mechanics, direction, altitude, flocking, water crossing, speed selection, daily distance traveled, and flight strategies. Kerlinger describes each aspect of behavior quantitatively, testing mechanistic hypotheses. In conclusion, he examines how migrants integrate these behavioral components. Throughout the text he draws comparisons between the migratory flight behavior of hawks and that of other taxa. By means of such comparisons, researchers can gain insight into the selective pressures that shape the behavior of migrant species.

Now, based on nearly ten years of research, this book provides the most complete analysis to date of how hawks migrate.

Wings in the Wild

Habits and Habitats of North American Birds

Covers habitats from around the world. "This outstanding collection of photographs sets Tom Vezo apart as one of the top nature photographers of today." -- Don and Lillian Stokes.

Presents color photos of more than 150 bird species in the wild, accompanied by descriptions of their habitats and behavior.

How Birds Migrate

Information on migratory flight patterns, flight speed and distance, travel seasons, calls of migrating birds, and more.

Information on migratory flight patterns, flight speed and distance, travel seasons, calls of migrating birds, and more.

The New York City Audubon Society Guide to Finding Birds in the Metropolitan Area

Provides up-to-date descriptions of forty important birding sites within the metropolitan area of the five boroughs of New York City, New Jersey, Long Island, and Westchester County, along with detailed maps, lists of birds that can be seen at each site, information on public transportation, suggestions for day trips, and other birding resources. Original.

Positioned along the major East Coast migratory flyway, New York City and the surrounding areas offer some of the finest birding opportunities in North America.