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The Second Colorado Breeding Bird Atlas

The Second Colorado Breeding Bird Atlas PDF Author:
Publisher:
ISBN: 9780692680544
Category : Birds
Languages : en
Pages : 727

Book Description


The Second Colorado Breeding Bird Atlas

The Second Colorado Breeding Bird Atlas PDF Author:
Publisher:
ISBN: 9780692680544
Category : Birds
Languages : en
Pages : 727

Book Description


The Second Atlas of Breeding Birds in West Virginia

The Second Atlas of Breeding Birds in West Virginia PDF Author: Richard S. Bailey
Publisher: Penn State University Press
ISBN: 9780271089805
Category :
Languages : en
Pages : 696

Book Description
The Second Atlas of Breeding Birds in West Virginia is the most comprehensive description of bird life in the Mountain State ever published. Building on the first Atlas, published in 1994, this book documents the occurrence of 170 species of breeding birds, including three new species and one whose last breeding record was in 1888. Compiled from the efforts of almost two hundred volunteers, who worked from 2009 to 2014 to amass more than one hundred thousand records and conduct point-count surveys, the Atlas presents detailed information about each species and two hybrids. Species accounts are accompanied by maps that show breeding evidence, as well as estimates of occurrence, change in occurrence, and population density. The volume covers state geography, climate, and changing habitats. It includes both a discussion of conservation concerns important to the state's breeding birds and a history of state ornithology and changes in West Virginia's avifauna drawn from observations and research from the nineteenth through the twenty-first century. Featuring up-to-date information about 170 bird species and hundreds of beautiful color photographs--nearly all of which are identified by county locations--The Second Atlas of Breeding Birds in West Virginia is an indispensable resource for researchers, conservationists, and birders.

Colorado Breeding Birds Atlas

Colorado Breeding Birds Atlas PDF Author: Hugh E. Kingery
Publisher:
ISBN: 9780966850604
Category : Bird populations
Languages : en
Pages : 636

Book Description


California Bird Species of Special Concern

California Bird Species of Special Concern PDF Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 468

Book Description


Ecology and Conservation of Forest Birds

Ecology and Conservation of Forest Birds PDF Author: Grzegorz Mikusiński
Publisher: Cambridge University Press
ISBN: 1108574637
Category : Nature
Languages : en
Pages : 568

Book Description
Ecology and Conservation of Forest Birds is a unique review of current understanding of the relationships between forest birds and their changing environments. Large ecological changes are being driven by forest management, climate change, introduced pests and pathogens, abiotic disturbances, and overbrowsing. Many forest bird species have suffered population declines, with the situation being particularly severe for birds dependent on attributes such as dead wood, old trees and structurally complex forests. With a focus on the non-tropical parts of the Northern Hemisphere, the text addresses the fundamental evolutionary and ecological aspects of forest birds using original data analyses and synthesising reviews. The characteristics of bird assemblages and their habitats in different European forest types are explored, together with the macroecological patterns of bird diversity and conservation issues. The book provides a valuable reference for ecologists, ornithologists, conservation professionals, forest industry employees, and those interested in birds and nature.

The Pinyon Jay

The Pinyon Jay PDF Author: John M. Marzluff
Publisher: A&C Black
ISBN: 1408136929
Category : Nature
Languages : en
Pages : 264

Book Description
A flock of Pinyon Jays arrive in a flash of blue, and leave again just as suddenly. This once mysterious bird is now the subject of over 20 years of intensive research involving over one thousand colour-marked jays by Russell Balda, John Marzluff and their colleagues and helpers. This plain blue bird has turned out to be anything but plain in its biology and behaviour. Uniquely dependent on the seeds of the Pinyon Pine for food, they have developed a number of behavioural and morphological adaptations to best utilise this resource, above all caching enough seeds each autumn to supply their needs throughout the winter and fuel their unusual habit of nesting in late winter. Fluctuations in pine-seed supply, both by season and between years, poses special problems for these birds and has led to their extremely flexible and complex social system in which learning and memory play an unusually large part. They store pine seeds and retrieve them with uncanny accuracy; they form lifelong pair bonds and nest colonially, occasionally involving younger birds to help established pairs rear the young; and they use their large vocabulary to coordinate activities within one of the largest known avian societies. This intriguing story will fascinate both the enthusiastic amateur birder and the professional alike. Packed with information, it presents Pinyon Jay biology in a readable form and places them into the wider context of studies on bird ecology and evolution. Fine illustrations by Tony Angell, with additional pictures by Caroline Bauder, complete this attractive addition to any birder's bookshelf.

Rare Birds of North America

Rare Birds of North America PDF Author: Steve N. G. Howell
Publisher: Princeton University Press
ISBN: 0691117969
Category : Literary Criticism
Languages : en
Pages : 448

Book Description
The first comprehensive illustrated guide to North America's vagrant birds Rare Birds of North America is the first comprehensive illustrated guide to the vagrant birds that occur throughout the United States and Canada. Featuring 275 stunning color plates, this book covers 262 species originating from three very different regions—the Old World, the New World tropics, and the world's oceans. It explains the causes of avian vagrancy and breaks down patterns of occurrence by region and season, enabling readers to see where, when, and why each species occurs in North America. Detailed species accounts describe key identification features, taxonomy, age, sex, distribution, and status. Rare Birds of North America provides unparalleled insights into vagrancy and avian migration, and will enrich the birding experience of anyone interested in finding and observing rare birds. Covers 262 species of vagrant birds found in the United States and Canada Features 275 stunning color plates that depict every species Explains patterns of occurrence by region and season Provides an invaluable overview of vagrancy patterns and migration Includes detailed species accounts and cutting-edge identification tips

Field Guide to the Birds of Eastern North America

Field Guide to the Birds of Eastern North America PDF Author: David Sibley
Publisher: Helm
ISBN: 9781472982056
Category : Birds
Languages : en
Pages : 0

Book Description
A portable guide to the birds of eastern North AmericaThe publication of Field Guide to Birds of Eastern North America and its companion edition, Field Guide to Birds of Western North America, quickly established David Sibley as the author and illustrator of the most comprehensive guides to these regions. This second edition builds on this foundation of excellence, with a wealth of improvements and updates. It offers expanded and updated information, new illustrations, larger reproduction and an improved design.Covering species east of the Rocky Mountains, the book features illustrations of 698 species and regional populations, with more than 4,600 illustrations digitally remastered from original art for perfect reproduction, and more than 600 colour maps. This is an indispensable resource for all birders seeking an authoritative yet portable guide to the birds of eastern North America.

Birds of Nebraska

Birds of Nebraska PDF Author: Roger S. Sharpe
Publisher: U of Nebraska Press
ISBN: 9780803242890
Category : Nature
Languages : en
Pages : 566

Book Description
Nebraska sits at the nexus of continental bird migration and serves as a home?either permanently or seasonally?for nearly 450 species. Major migratory routes pass through the state, creating numerous opportunities to observe the great variety of North American bird species. The annual crane migrations in spring are legendary, and other key events include winter concentrations of bald eagles, flocks of up to thirty thousand grebes, mergansers, and gulls at Lake McConaughy in late fall, and incredible concentrations of waterfowl in the Rainwater Basin in early spring.øBirds of Nebraska captures the variety of Nebraska's ornithological possibilities in a style useful to hobbyists and professionals alike. For the first time in Nebraska ornithology, the authors have provided an exhaustive summary of state bird records compiled into concise but readable accounts of all species of birds reported in the state. This work covers taxonomy, early and late migration dates, high counts, nesting areas, and likely viewing locations.

Estimating Numbers of Terrestrial Birds

Estimating Numbers of Terrestrial Birds PDF Author: C. John Ralph
Publisher:
ISBN: 9781930665774
Category : Science
Languages : en
Pages : 644

Book Description
This book was originally published in 1981 as a publication of the Cooper Ornithological Society and was based on the proceedings of a meeting of biologists and statisticians in Asilomar who gathered to examine the methods and assumptions used in estimating bird numbers. Counting birds has a long tradition. It is the currency of many ornithological studies. Bird counts have been seminal in our knowledge of bird migration, competition, ecology, population dynamics, environmental adaptation, impact of human alterations and island biogeography. Interest in estimating bird numbers remains high today but is often plagued by unasked or unanswered questions regarding sampling methods and treatment of the results. This book recorded the outcome of a meeting held to address these and other questions. It led to better understanding of what can and cannot be done with datasets. This volume remains a primary source of information on censusing of birds and other animals, and is frequently quoted in the primary literature of today. Since this volume went out of print some six years ago, demand has markedly increased for copies which are essentially unavailable, attesting to its currency today. C. John Ralph, received his Bachelors from the University of California, Berkeley and his doctorate from The Johns Hopkins University. Most of his early research was on bird migration and orientation. After a stint teaching at Dickinson College in Pennsylvania, he moved to Hawaii in 1976 where he began work on endangered forest birds for the Forest Service as a Research Ecologist. In 1981 he and his family moved to Arcata to join the Forest Service's Redwood Sciences Laboratory. One of his principal research topics there has been on an old-growth dependent bird, the Marbled Murrelet, involving extensive research from Alaska to California. His other principal work is on landbird monitoring, especially involving census and constant effort mist netting. Since 1994 he has directed research at a bird monitoring station in Costa Rica, now one of the longest running stations in Latin America. Beginning in 1980 he conducted research on an island off New Zealand involving monitoring and reintroduction of native birds. He has published more than 150 scientific articles and edited several books on bird monitoring and the Marbled Murrelet.