Download or read book Flight Strategies of Migrating Hawks written by Paul Kerlinger and published by . This book was released on 1989 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Migrating Raptors of the World written by Keith L. Bildstein and published by Cornell University Press. This book was released on 2006 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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.
Download or read book Migration Strategies of Birds of Prey in Western Palearctic written by Michele Panuccio and published by CRC Press. This book was released on 2021-07-28 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Given their roles in the ecosystem, raptors are widely considered the flagship or umbrella species among birds. Most species undertake a seasonal journey that is impressive because of the length, and the imposing natural barriers such as deserts and seas that they fly over. The migration of birds of prey has unique characteristics in the animal world because of their morphology and flight style. The flying path of Afro-Palearctic migrants between breeding and wintering grounds is determined by several factors such as morphology of the birds, geography, behavioural adaptations. The book analyses the migration patterns of raptors along the Afro-Palearctic migratory system, and summarizes the recent research on these top predator species. Behavioural adaptations such as the importance of social interactions and the modulation of the different flight styles as well as ecological interactions with the encountered environment and weather conditions en route are described in the book. Moreover, the impact of climate change on the migratory behaviour and key conservation issues are discussed. The book provides an overview of the migratory characteristics and flyway patterns of all European raptors species and also some Asian ones. These chapters have been written by some of the most important raptor specialists, giving a complete picture of the different migration strategies on the basis of both traditional methods and new technologies.
Download or read book The Next Great Migration written by Sonia Shah and published by Bloomsbury Publishing. This book was released on 2020-06-11 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'A dazzlingly original picture of our relentlessly mobile species' NAOMI KLEIN 'Fascinating . . . Likely to prove prophetic in the coming months and years' OBSERVER 'A dazzling tour through 300 years of scientific history' PROSPECT 'A hugely entertaining, life-affirming and hopeful hymn to the glorious adaptability of life on earth' SCOTSMAN __________________ We are surrounded by stories of people on the move. Wild species, too, are escaping warming seas and desiccated lands in a mass exodus. Politicians and the media present this upheaval of migration patterns as unprecedented, blaming it for the spread of disease and conflict, and spreading anxiety across the world as a result. But the science and history of migration in animals, plants, and humans tell a different story. Far from being a disruptive behaviour, migration is an ancient and lifesaving response to environmental change, a biological imperative as necessary as breathing. Climate changes triggered the first human migrations out of Africa. Falling sea levels allowed our passage across the Bering Sea. Unhampered by borders, migration allowed our ancestors to people the planet, into the highest reaches of the Himalayan Mountains and the most remote islands of the Pacific, disseminating the biological, cultural and social diversity that ecosystems and societies depend upon. In other words, migration is not the crisis – it is the solution. __________________ Tracking the history of misinformation from the 18th century through to today's anti-immigration policies, The Next Great Migration makes the case for a future in which migration is not a source of fear, but of hope.
Download or read book How Birds Migrate written by Paul Kerlinger and published by Stackpole Books. This book was released on 2008-12-16 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information on migratory flight patterns, flight speed and distance, travel seasons, calls of migrating birds, and more.
Download or read book The migrations of birds written by Alexander Wetmore and published by . This book was released on 1926 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Narwhals written by Todd McLeish and published by University of Washington Press. This book was released on 2013-06-18 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among all the large whales on Earth, the most unusual and least studied is the narwhal, the northernmost whale on the planet and the one most threatened by global warming. Narwhals thrive in the fjords and inlets of northern Canada and Greenland. These elusive whales, whose long tusks were the stuff of medieval European myths and Inuit legends, are uniquely adapted to the Arctic ecosystem and are able to dive below thick sheets of ice to depths of up to 1,500 meters in search of their prey-halibut, cod, and squid. Join Todd McLeish as he travels high above the Arctic circle to meet: Teams of scientific researchers studying the narwhal's life cycle and the mysteries of its tusk Inuit storytellers and hunters Animals that share the narwhals' habitat: walruses, polar bears, bowhead and beluga whales, ivory gulls, and two kinds of seals McLeish consults logbooks kept by whalers and explorers and interviews folklorists and historians to tease out the relationship between the real narwhal and the mythical unicorn. In Colorado, he visits climatologists studying changes in the seasonal cycles of the Arctic ice. From a history of the trade in narwhal tusks to descriptions of narwhals' vocalizations as heard through hydrophones, Narwhals reveals the beauty and thrill of the narwhal and its habitat, and the threat it faces from a rapidly changing world. Watch the trailer: http://www.youtube.com/watch?v=gHwaqdKyLCQ&list=UUge4MONgLFncQ1w1C_BnHcw&index=9&feature=plcp
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
Download or read book The Art of Migration written by Peggy Macnamara and published by University of Chicago Press. This book was released on 2013-07 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tiny ruby-throated hummingbirds weighing less than a nickel fly from the upper Midwest to Costa Rica every fall, crossing the six-hundred-mile Gulf of Mexico without a single stop. One of the many creatures that commute on the Mississippi Flyway as part of an annual migration, they pass along Chicago’s lakefront and through midwestern backyards on a path used by their species for millennia. This magnificent migrational dance takes place every year in Chicagoland, yet it is often missed by the region’s two-legged residents. The Art of Migration uncovers these extraordinary patterns that play out over the seasons. Readers are introduced to over two hundred of the birds and insects that traverse regions from the edge of Lake Superior to Lake Michigan and to the rivers that flow into the Mississippi. As the only artist in residence at the Field Museum, Peggy Macnamara has a unique vantage point for studying these patterns and capturing their distinctive traits. Her magnificent watercolor illustrations capture flocks, movement, and species-specific details. The illustrations are accompanied by text from museum staff and include details such as natural histories, notable features for identification, behavior, and how species have adapted to environmental changes. The book follows a gentle seasonal sequence and includes chapters on studying migration, artist’s notes on illustrating wildlife, and tips on the best ways to watch for birds and insects in the Chicago area. A perfect balance of science and art, The Art of Migration will prompt us to marvel anew at the remarkable spectacle going on around us.
Download or read book RAPTOR WATCH written by ZALLES JORJE I and published by Smithsonian. This book was released on 2000-07-17 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Raptors, including hawks, eagles, falcons, and owls, are wide-ranging, land-based predators found across a broad range of habitats on six continents. Most raptors undertake seasonal migrations, traveling along topographical corridors by which they orient themselves. Tens of thousands of raptors regularly gather at specific stopover sites, which leaves them vulnerable to habitat destruction and systematic hunting -- but also makes these otherwise widely dispersed birds easy to view in their natural environments. Published with Pennsylvania's Hawk Mountain Sanctuary and bringing together information from more than eight hundred raptor experts, this comprehensive guide provides detailed accounts of 388 globally significant "watchsites". For each site, the contributors document raptor species, migration periods, protection status, land use, and monitoring activities. Organized by continent and illustrated with photographs and maps, Raptor Watch offers an accessible, thoroughly researched guide to the viewing opportunities and conservation efforts provided by raptor watchsites around the world.
Download or read book Living on the Wind written by Scott Weidensaul and published by Macmillan. This book was released on 2000-04-15 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scott Weidensaul follows hawks over the Mexican coastal plains, Bar-tailed Godwits that hitchhike on gale winds 7,000 miles nonstop across the Pacific from Alaska to New Zealand, and the Myriad Songbirds whose numbers have dwindled so dramatically in recent years.
Download or read book Migration written by Melissa Mayntz and published by Hardie Grant Publishing. This book was released on 2020-05-14 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: WINNER OF THE SILVER MEDAL IN THE ANIMAL & NATURE CATEGORY OF THE NAUTILUS AWARDS 2022 Flight has fascinated humans since we first looked into the sky and saw birds on the wing, and no flights are more fascinating than the extraordinary migrations birds make every day, week, month, and season of the year. Migration explores how birds make these incredible expeditions. From first preparing to migrate, to the different types of migration and the compelling reasons why it is a must. From the high-flying adventures of bar-headed geese that soar above the Himalayan Mountains and the long-distance endurance of Arctic terns that travel from pole-to-pole, birds of all families, from vast seasonal migrators to the more casual nomad, will be explored. As readers migrate through the book’s pages, they will also discover avian navigation, curious routes, the hazards of the journey, and why, occasionally, birds end up far from their original destination. Beautifully illustrated, this book will debunk the most outrageous myths about migration as it thoroughly travels the globe exploring the epic journeys these incredible birds make.
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.
Download or read book Hawks in Flight written by Pete Dunne and published by Mariner Books. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An indispensable guide for hawk watchers, this is a completely new edition of the seminal book that introduced a holistic method for identifying distant birds in flight.
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.
Download or read book Bird Migration and Global Change written by George W. Cox and published by Island Press. This book was released on 2010-07-07 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changes in seasonal movements and population dynamics of migratory birds in response to ongoing changes resulting from global climate changes are a topic of great interest to conservation scientists and birdwatchers around the world. Because of their dependence on specific habitats and resources in different geographic regions at different phases of their annual cycle, migratory species are especially vulnerable to the impacts of climate change. In Bird Migration and Global Change, eminent ecologist George W. Cox brings his extensive experience as a scientist and bird enthusiast to bear in evaluating the capacity of migratory birds to adapt to the challenges of a changing climate. Cox reviews, synthesizes, and interprets recent and emerging science on the subject, beginning with a discussion of climate change and its effect on habitat, and followed by eleven chapters that examine responses of bird types across all regions of the globe. The final four chapters address the evolutionary capacity of birds, and consider how best to shape conservation strategies to protect migratory species in coming decades. The rate of climate change is faster now than at any other moment in recent geological history. How best to manage migratory birds to deal with this challenge is a major conservation issue, and Bird Migration and Global Change is a unique and timely contribution to the literature.
