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Author : John Richard Haugh
Publisher :
ISBN 13 :
Total Pages : 522 pages
Book Rating : 4.E/5 ( download)
Download or read book A Study of Hawk Migration and Weather in Eastern North America written by John Richard Haugh and published by . This book was released on 1970 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Richard Haugh
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (115 download)
Download or read book A Study of Hawk Migration in Eastern North America written by John Richard Haugh and published by . This book was released on 1972 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald S. Heintzelman
Publisher :
ISBN 13 :
Total Pages : 392 pages
Book Rating : 4.:/5 (321 download)
Download or read book The Migrations of Hawks written by Donald S. Heintzelman and published by . This book was released on 1986-10-22 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are forty species of hawks in North America, including vultures, the California condor, and the bald eagle, our national bird. Heintzelman's monumental study is a comprehensive survey of what we know about the migrations of these magnificent birds in North America, Central America, and the West Indies. After a general introduction on migration season, speeds, and methodology, eleven detailed chapters survey migration routes and statistics in all the following regions: eastern and western Canada, the Great Lakes area, New England, the Middle Atlantic states, southern Appalachia, the Gulf Coast, the Central states, Western states, Central America, and the West Indies. Subsequent chapters deal with the influence of weather systems and local weather variables, updrafts, thermals, altitudes and the daily rhythm of migrations, the influence of age and geography, and the role of hawk counts as indices to population trends.
Download or read book Journal of the Hawk Migration Association of North America written by and published by . This book was released on 1980 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hawk Migration Association of North America
Publisher :
ISBN 13 :
Total Pages : 448 pages
Book Rating : 4.E/5 ( download)
Download or read book The Newsletter of the Hawk Migration Association of North America written by Hawk Migration Association of North America and published by . This book was released on 1982 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 700 pages
Book Rating : 4.E/5 ( download)
Download or read book Hawk Migration Studies written by and published by . This book was released on 1997 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jerry Liguori
Publisher : Princeton University Press
ISBN 13 : 1400884209
Total Pages : 144 pages
Book Rating : 4.4/5 (8 download)
Download or read book Hawks from Every Angle written by Jerry Liguori and published by Princeton University Press. This book was released on 2016-08-10 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Identifying hawks in flight is a tricky business. Across North America, tens of thousands of people gather every spring and fall at more than one thousand known hawk migration sites--from New Jersey's Cape May to California's Golden Gate. Yet, as many discover, a standard field guide, with its emphasis on plumage, is often of little help in identifying those raptors soaring, gliding, or flapping far, far away. Hawks from Every Angle takes hawk identification to new heights. It offers a fresh approach that literally looks at the birds from every angle, compares and contrasts deceptively similar species, and provides the pictures (and words) needed for identification in the field. Jerry Liguori pinpoints innovative, field-tested identification traits for each species from the various angles that they are seen. Featuring 339 striking color photos on 68 color plates and 32 black & white photos, Hawks from Every Angle is unique in presenting a host of meticulously crafted pictures for each of the 19 species it covers in detail--the species most common to migration sites throughout the United States and Canada. All aspects of raptor identification are discussed, including plumage, shape, and flight style traits. For all birders who follow hawk migration and have found themselves wondering if the raptor in the sky matches the one in the guide, Hawks from Every Angle--distilling an expert's years of experience for the first time into a comprehensive array of truly useful photos and other pointers for each species--is quite simply a must. Key Features? The essential new approach to identifying hawks in flight Innovative, accurate, and field-tested identification traits for each species 339 color photos on 68 color plates, 32 black & white photos Compares and contrasts species easily confused with one another, and provides the pictures (and words) needed for identification in the field Covers in detail 19 species common to migration sites throughout the North America Discusses light conditions, how molt can alter the shape of a bird, aberrant plumages, and migration seasons and sites User-friendly format
Author : Jerry Liguori
Publisher : Princeton University Press
ISBN 13 : 0691135592
Total Pages : 208 pages
Book Rating : 4.6/5 (911 download)
Download or read book Hawks at a Distance written by Jerry Liguori and published by Princeton University Press. This book was released on 2011-04-03 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Hawks at a Distance" is the first volume to focus on distant raptors as they are truly seen in the field. Jerry Liguori, a leading expert on North American raptors, factors in new information and approaches for identifying twenty-nine species of raptor in various lighting situations and settings. The field guide's nineteen full-color portraits, 558 color photos, and 896 black-and-white images portray shapes and plumages for each species from all angles. Useful flight identification criteria are provided and the accompanying text discusses all aspects of in-flight hawk identification, including flight style and behavior. Concentrating on features that are genuinely observable at a distance ..."--Jacket.
Author :
Publisher :
ISBN 13 :
Total Pages : 1330 pages
Book Rating : 4.3/5 (126 download)
Download or read book Wildlife Review written by and published by . This book was released on 1969 with total page 1330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Harwood
Publisher :
ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.E/5 ( download)
Download or read book Proceedings of the North American Hawk Migration Conference, Syracuse, New York, April 18-21, 1974 written by Michael Harwood and published by . This book was released on 1975 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald S. Heintzelman
Publisher : Rutgers University Press
ISBN 13 : 9780813533506
Total Pages : 236 pages
Book Rating : 4.5/5 (335 download)
Download or read book Hawks and Owls of Eastern North America written by Donald S. Heintzelman and published by Rutgers University Press. This book was released on 2004 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation. An essential illustrated resource on the hawks & owls of Eastern North America.
Author :
Publisher :
ISBN 13 :
Total Pages : 918 pages
Book Rating : 4.E/5 ( download)
Download or read book Hawk Migration Studies written by and published by . This book was released on 2000 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard Crossley
Publisher : Princeton University Press
ISBN 13 : 1400847044
Total Pages : 17 pages
Book Rating : 4.4/5 (8 download)
Download or read book The Crossley ID Guide: Raptors written by Richard Crossley and published by Princeton University Press. This book was released on with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: " ... This book changes field guide design to make you a better birder ... The most comprehensive guide : 640 stunning scenes created from 10,000 of the author's photographs ... Lifelike in-focus scenes show birds in their habitats ..."--P. [4] of cover.
Author : John R. Sauer
Publisher :
ISBN 13 :
Total Pages : 184 pages
Book Rating : 4.:/5 (327 download)
Download or read book Survey Designs and Statistical Methods for the Estimation of Avian Population Trends written by John R. Sauer and published by . This book was released on 1990 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Scott Weidensaul
Publisher : W. W. Norton & Company
ISBN 13 : 0393608913
Total Pages : 383 pages
Book Rating : 4.3/5 (936 download)
Download or read book A World on the Wing: The Global Odyssey of Migratory Birds written by Scott Weidensaul and published by W. W. Norton & Company. This book was released on 2021-03-30 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: New York Times Bestseller Finalist for the Los Angeles Times Book Prize A Library Journal Best Science and Technology Book of the Year An exhilarating exploration of the science and wonder of global bird migration. In the past two decades, our understanding of the navigational and physiological feats that enable birds to cross immense oceans, fly above the highest mountains, or remain in unbroken flight for months at a stretch has exploded. What we’ve learned of these key migrations—how billions of birds circumnavigate the globe, flying tens of thousands of miles between hemispheres on an annual basis—is nothing short of extraordinary. Bird migration entails almost unfathomable endurance, like a sparrow-sized sandpiper that will fly nonstop from Canada to Venezuela—the equivalent of running 126 consecutive marathons without food, water, or rest—avoiding dehydration by "drinking" moisture from its own muscles and organs, while orienting itself using the earth’s magnetic field through a form of quantum entanglement that made Einstein queasy. Crossing the Pacific Ocean in nine days of nonstop flight, as some birds do, leaves little time for sleep, but migrants can put half their brains to sleep for a few seconds at a time, alternating sides—and their reaction time actually improves. These and other revelations convey both the wonder of bird migration and its global sweep, from the mudflats of the Yellow Sea in China to the remote mountains of northeastern India to the dusty hills of southern Cyprus. This breathtaking work of nature writing from Pulitzer Prize finalist Scott Weidensaul also introduces readers to those scientists, researchers, and bird lovers trying to preserve global migratory patterns in the face of climate change and other environmental challenges. Drawing on his own extensive fieldwork, in A World on the Wing Weidensaul unveils with dazzling prose the miracle of nature taking place over our heads.
Author :
Publisher :
ISBN 13 :
Total Pages : 676 pages
Book Rating : 4.E/5 ( download)
Download or read book The Loon written by and published by . This book was released on 1979 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : I. Newton
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (74 download)
Download or read book Bird migration at different latitudes in eastern North America written by I. Newton and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We attempt to quantify the relationship between migration and latitude in the avifauna of eastern North America. Progressing northward up the east side of the continent, the proportion of breeding species that moves south for the winter increases steadily, from 12% at 25 degrees N (southern Florida) to 87% at 80 degrees N (Ellesmere Island), a mean increase of 1.4% for every degree of latitude. Conversely, the proportion of wintering species that moves north for the summer decreases with latitude, from 52% at 25 degrees N to none at 70 degrees N, a mean decrease of 1.1% for every degree of latitude. These relationships hold despite the fact that 24% of all species breeding in eastern North America leave the area completely in fall to winter south of 25 degrees N, mostly in Central and South America (including the Caribbean Islands). These trends are similar to those in western Europe, but at any given latitude an average of 17% more breeding species leave for the winter in eastern North America, and 10% more wintering species leave for the summer, This difference is attributed to climate, in that at any given latitude temperatures are cooler in eastern North America than in Europe. We argue that relationships between migration and latitude exist because latitude isa good surrogate measure of factors likely tc,more directly influence migration, such as climate and daylength, which in turn control the amplitude of seasonal changes in food supplies.
