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Author: John L. Trapp
Publisher:
ISBN:
Category : Bird surveys
Languages : en
Pages : 26
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Book Description
"This report reviews the status of the 386 species of birds known to have occurred in Alaska as of June 25, 1979 to determine which species might be eligible for nomination as vulnerable migratory birds."--Leaf 1.
Author: John L. Trapp
Publisher:
ISBN:
Category : Bird surveys
Languages : en
Pages : 26
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Book Description
"This report reviews the status of the 386 species of birds known to have occurred in Alaska as of June 25, 1979 to determine which species might be eligible for nomination as vulnerable migratory birds."--Leaf 1.
Author: Richard M. DeGraaf
Publisher: Cornell University Press
ISBN: 9780801482656
Category : Nature
Languages : en
Pages : 692
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Book Description
Thrushes, warblers, vireos, and tanagers are probably the most familiar of the Neotropical migrants--birds that breed in the United States and Canada, then journey to spend the winter in the Caribbean, Mexico, or southward. But this extraordinary group actually comprises a large number of diverse species, including waterfowl, shorebirds, terns, hawks, flycatchers, and hummingbirds. In their compendious review of information on these birds, Richard M. DeGraaf and John H. Rappole illuminate the need for a thorough understanding of the ecology of each species, one that exte4nds throughout the entire life cycle. The authors argue convincingly that conservation efforts must be based on such an understanding and carried out across a species' range--not limited to the breeding grounds. This book is the first to summarize in one volume much-needed practical data about the distribution and breeding habitat requirements of migratory birds in North and South America. The body of the book consists of natural history accounts of more than 350 species of Neotropical migrants, including a brief description of each bird's range, status, habitats on breeding grounds, nest site, and wintering areas. The authors provide a complete range map of each species' distribution in the Western Hemisphere as well as notes on the distribution--basic data that until recently have largely been unavailable in usable form to ornithologists and land and resource managers. An appendix lists species that are increasing or decreasing at significant rates in various physiographic regions of North America.
Author: Deborah M. Finch
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 32
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Book Description
This report was prepared in support of the National Fish and Wildlife Foundation's Neotropical Migratory Bird Conservation Program and the USDA Forest Service's role in the program. Recent analyses of data on forest-dwelling species, many of which are neotropical migrants, show population declines in many North American areas. The literature review summarizes current information on population trends of neotropical migratory birds and the factors affecting migrant populations on the breeding and wintering grounds. Opportunities for research, monitoring, and conservation of these migrants on Forest Service lands are discussed.
Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 50
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Author:
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 28
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Book Description
Author: Peter Berthold
Publisher: Oxford University Press, USA
ISBN:
Category : Nature
Languages : en
Pages : 260
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Book Description
This book, written by a leading researcher in the field, describes the science of bird migration in an accessible way. Not merely detailing the incredible stamina and navigation skills of birds in their seasonal movements, Berthold also discusses recent ideas, hypotheses, experimental results, and methods in this fascinating field, giving a sense of how we know what we know. No other book covers this ground in such a concise text. There are twelve chapters, including information on types of migration, migratory behaviour, physiological adaptations, orientation mechanisms and navigation, and conservation needs of migrants. For birdwatchers and naturalists, as well as professional ornithologists, this book will inspire a new appreciation and understanding of migrating birds.
Author: Deborah M. Finch
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 432
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Book Description
Author: Migratory Bird Populations Station (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 106
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Book Description
Author: Deborah M. Finch
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 44
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Book Description
Focuses on species inhabiting lands managed by the National Forest System, and in particular, lands within the boundaries of the Rocky Mountain Region (Region 2: Colorado, Kansas, Nebraska, South Dakota, Wyoming) of the U.S. Forest Service.
Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 38
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