Gulls of the Americas

Gulls of the Americas PDF Author: Howell
Publisher: Academic Press
ISBN: 9780123569608
Category :
Languages : en
Pages :

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Book Description

Gulls of the Americas

Gulls of the Americas PDF Author: Howell
Publisher: Academic Press
ISBN: 9780123569608
Category :
Languages : en
Pages :

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Book Description


Molt in North American Birds

Molt in North American Birds PDF Author: Steve N. G. Howell
Publisher: Houghton Mifflin Harcourt
ISBN: 0547152353
Category : Nature
Languages : en
Pages : 280

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Book Description
A comprehensive examination of the molt processes (feather growth) of different species of birds, one of the most important and fundamental processes in the life history of any bird.

Gulls of Europe, Asia and North America

Gulls of Europe, Asia and North America PDF Author: Klaus Malling Olsen
Publisher: A&C Black
ISBN: 1408135779
Category : Nature
Languages : en
Pages : 607

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Book Description
This eagerly awaited guide offers the most comprehensive treatment ever published on the gulls of Europe, Asia and North America. A total of 43 species is treated, and every species is described in considerable detail, with a full description of each plumage and racial variation. Gulls are intelligent, versatile, opportunistic, and ecological generalists. As such, they exploit a variety of habitats, both coastal and inland, take a wide range of food, and are often extremely abundant. They are also great wanderers, with several American species regularly appearing in Western Europe and vice versa. As well as identification criteria, this book includes an up-to-date assessment of the range and status of every species, together with information on patterns of vagrancy. This important guide is published at a critical time in the development of dull taxonomy. The large, white-headed forms occurring in the region comprise a superspecies complex, with the precise relationships between the various components still under considerable debate. A thorough illustrative and textual treatment of the group is much needed, and this book provided the most complete overview of the complex. The text is complemented not only by superb colour paintings by Hans Larrson, but also by a large selection of colour photographs, sourced from some of the finest bird photographers in the world. This is the essential reference to a fascinating and endlessly challenging group of birds.

A Reference Guide to Gulls of the Americas

A Reference Guide to Gulls of the Americas PDF Author: Steve N. G. Howell
Publisher: Houghton Mifflin Harcourt
ISBN: 9780618726417
Category : Nature
Languages : en
Pages : 534

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Book Description
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Gulls of the World

Gulls of the World PDF Author: Klaus Malling Olsen
Publisher: Princeton University Press
ISBN: 0691180598
Category : Nature
Languages : en
Pages : 370

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Book Description
A comprehensive photographic guide to the world’s gull species With more than 50 gull species in the world, this family of seabirds poses some of the greatest field identification challenges of any bird group: age-related plumage changes, extensive variations within species, frequent hybridization, and complex distribution. Gulls of the World takes on these challenges and is the first book to provide a comprehensive look at these birds. Concise text emphasizes field identification, with in-depth discussion of variations as well as coverage of habitat, status, and distribution. Abundant photographs highlight identification criteria and, crucially, factor in age and subspecific field separation. Informative species accounts are accompanied by detailed color range maps. Gulls of the World is the most authoritative photographic guide to this remarkable bird family. The first book to provide in-depth coverage of all the world's gull species More than 600 stunning color photographs Concise text looks at variations, habitat, status, and distribution Informative species accounts and color range maps

Peterson Reference Guide to Bird Behavior

Peterson Reference Guide to Bird Behavior PDF Author: John Kricher
Publisher: Peterson Reference Guides
ISBN: 1328787362
Category : Birds
Languages : en
Pages : 363

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Book Description
A fascinating look at what birds do and why they do it Both casual and serious birdwatchers can take their skills to the next level with this detailed consideration of bird behavior. This book makes it possible to move beyond identifying birds to understanding some of the underpinning and meaning to what birds do, how they do it, and why they do it. Written in an easy-to-understand style, with an abundance of photos illustrating the behaviors, the book shows how flight, molt, migration, feeding, predation, social behavior, courtship, and nesting shape birds' behaviors. Birds are everywhere, and easy to observe; this introduction to elements of bird behavior will connect readers more intimately with these remarkable and beguilingly perceptive animals.

Peterson Reference Guide to Sparrows of North America

Peterson Reference Guide to Sparrows of North America PDF Author: Rick Wright (Bird tour leader)
Publisher: Mariner Books
ISBN: 0547973160
Category : History
Languages : en
Pages : 453

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Book Description
Sparrows are as complicated as they are common. This is an essential guide to identifying 76 kinds, along with a fascinating history of human interactions with them. What, exactly, is a sparrow? All birders (and many non-birders) have essentially the same mental image of a pelican, a duck, or a flamingo, and a guide dedicated to waxwings or kingfishers would need nothing more than a sketch and a single sentence to satisfactorily identify its subject. Sparrows are harder to pin down. This book covers one family (Passerellidae), which includes towhees and juncos, and 76 members of the sparrow clan. Birds have a human history, too, beginning with their significance to native cultures and continuing through their discovery by science, their taxonomic fortunes and misfortunes, and their prospects for survival in a world with ever less space for wild creatures. This book includes not just facts and measurements, but stories--of how birds got their names and how they were discovered--of their entanglement with human history.

Gulls Simplified

Gulls Simplified PDF Author: Pete Dunne
Publisher: Princeton University Press
ISBN: 0691156948
Category : Nature
Languages : en
Pages : 208

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Book Description
A simpler and more user-friendly visual approach to gull identification This unique photographic field guide to North America’s gulls provides a comparative approach to identification that concentrates on the size, structure, and basic plumage features of gulls—gone are the often-confusing array of plumage details found in traditional guides. Featuring hundreds of color photos throughout, Gulls Simplified illustrates the variations of gull plumages for a variety of ages, giving readers strong visual reference points for each species. Extensive captions accompany the photos, which include comparative photo arrays, digitized photo arrays for each age group, and numerous images of each species—a wealth of visual information at your fingertips. This one-of-a-kind guide includes detailed species accounts and a distribution map for each gull. An essential field companion for North American birders, Gulls Simplified reduces the confusion commonly associated with gull identification, offering a more user-friendly way of observing these marvelous birds. Provides a simpler approach to gull identification Features a wealth of color photos for easy comparison among species Includes detailed captions that explain identification criteria and aging, with direct visual reinforcement above the captions Combines plumage details with a focus on size, body shape, and structural features for easy identification in the field Highlights important field marks and physical features for each gull

Gulls of Europe, North Africa, and the Middle East

Gulls of Europe, North Africa, and the Middle East PDF Author: Peter Adriaens
Publisher: Princeton University Press
ISBN: 0691222835
Category : Nature
Languages : en
Pages : 320

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Book Description
"There is no summary for this book at this time"--

A Guide to the Birds of Mexico and Northern Central America

A Guide to the Birds of Mexico and Northern Central America PDF Author: Steve N. G. Howell
Publisher: Oxford University Press
ISBN: 9780198540120
Category : Nature
Languages : en
Pages : 1024

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Book Description
"A Guide to the Birds of Mexico and Northern Central America is astonishingly comprehensive, covering the identification, status, and distribution of all 1,070 birds species known from Mexico, Guatemala, Belize, El Salvador, Honduras, and western Nicaragua ... [T]he guide shows 750 species and includes many plumages never before depicted"--