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Author : Milton Webster Weller
Publisher : U of Minnesota Press
Page : 647 pages
File Size : 41,7 Mb
Release : 1988
Category : Electronic
ISBN : 9781452908571
Author : Milton Webster Weller
Publisher : U of Minnesota Press
Page : 650 pages
File Size : 44,8 Mb
Release : 1988
Category : Science
ISBN : 9780816615711
Waterfowl in Winter was first published in 1988. Minnesota Archive Editions uses digital technology to make long-unavailable books once again accessible, and are published unaltered from the original University of Minnesota Press editions. The emphasis in research on waterfowl has traditionally focused on breeding as opposed to migrant or wintering birds. Scientists have long been interested in courtship, nest sites, laying, and brood-rearing, and they have also been concerned about losses of eggs, young, nesting hens, and breeding habitats, especially as they have affected the goal of increasing populations. But lately there has been an upsurge of interest and research on the migratory and wintering phases, and this volume offers ample evidence of the knowledge gained. The authors—105 waterfowl biologists—have contributed 47 chapters that range geographically from Alaska to northern South America, and from the Pacific Northwest to Nova Scotia and Florida. Their subjects include: distributional changes due to human influence; population trends and concerns over less common species; pairing and other behavior that occurs in the wintering areas and is vital to the success of the species; feeding ecology and body condition during winter; new habitats created by such activities as aquaculture and park development; losses of habitat due to development and drainage for alternate uses; lead poisoning and pollutants that are detrimental to waterfowl; habitat management for maintenance of successful populations now and in the future. Also presented are reports of workshop discussions outlining current issues and future research needs. Preparation of this volume was assisted by an editorial board comprising Bruce J. J. Batt, Robert H. Chabreck, Leigh H. Fredrickson, and Dennis G. Raveling.
Author : Curtice R. Griffin,Thomas S. Baskett,Rollin D. Sparrowe
Publisher : Unknown
Page : 20 pages
File Size : 44,8 Mb
Release : 1982
Category : Bald eagle
ISBN : UOM:39015077574815
Bald eagles (Haliaeetus leucocephalus) associate with wintering waterfowl concentrations throughout the United States, but little detailed information is available on eagle-waterfowl relations. This report concerns the ecology of bald eagles wintering in the vicinity of Swan Lake National Wildlife Referenc in north-central Missouri and, more specifically, examines the association of the eagles with waterfowl during the winters of 1975-76, 1976-77, and 1977-78
Author : Leigh M. Couling,A. R. Sen,Elwood Martin
Publisher : Unknown
Page : 298 pages
File Size : 44,9 Mb
Release : 1982
Category : Hunting surveys
ISBN : UCSD:31822009785338
A mail questionnaire survey of waterfowl hunters is conducted each year in the United States to provide information on waterfowl kill and hunter activity. We carried out a study using data from the 1971-73 and 1972-73 hunting seasons to determine the effectiveness of the present U.S. sampling and estimation techniques, and a number of modifications in both sampling and analysis is recommended.
Author : Anonim
Publisher : Unknown
Page : 56 pages
File Size : 47,5 Mb
Release : 2000
Category : Waterfowl management
ISBN : MINN:31951D018607398
Author : Loren M. Smith,Roger L. Pederson,Richard M. Kaminski
Publisher : Texas Tech University Press
Page : 586 pages
File Size : 54,8 Mb
Release : 1989
Category : Business & Economics
ISBN : 089672204X
This important compilation on habitat management for waterfowl throughout North America addresses practicing waterfowl biologists and managers, researchers, and students of waterfowl ecology and management.
Author : Anonim
Publisher : Unknown
Page : 588 pages
File Size : 47,5 Mb
Release : 1948
Category : Wildlife conservation
ISBN : UOM:39015055244225
Author : U.S. Fish and Wildlife Service
Publisher : Unknown
Page : 244 pages
File Size : 50,6 Mb
Release : 1978
Category : California
ISBN : UCR:31210025006311
Author : Bruce S. Wright
Publisher : Stackpole Books
Page : 176 pages
File Size : 43,6 Mb
Release : 2017-09-15
Category : Nature
ISBN : 9780811766753
Eastern waterfowlers, who know the black duck best, regard this big dusky bird as the top game bird against which all other ducks are measured. In parts of the Northeast this feeling of affection is so strong that in some circles only the black rates the name of "duck." All other species, even the famed canvasback, are "coots," "fish ducks," or are known by even less complimentary titles. Much of this devotion is justified. Without the black duck, wildfowling in much of the thickly settled East would be an unrewarding pastime. Big as a mallard, as wary as a Canada goose, and as handsome in full plumage as any duck that flies, the black duck fills a place on the American sporting scene that could be filled by no other waterfowl. Here is the dramatic story of the life of the black duck, from the time the broods hatch on the spruce-lined ponds of eastern Canada, through the hazardous flights to the southern wintering areas, to the return of the paired birds to the nesting grounds in spring. It is a story told authoritatively by a Canadian scientist whose adult life has been spent in studying the black duck from the fastnesses of its northern breeding grounds in Labrador and Ungava Bay, to the marshes of Louisiana. In this book are facts on the black and other species of waterfowl that will be new to many students of waterfowl as well as to sportsmen. Here also are recommendations for perpetuating the flights of these magnificent game birds.
Author : U.S. Fish and Wildlife Service
Publisher : Unknown
Page : 158 pages
File Size : 41,7 Mb
Release : 1972
Category : Water birds
ISBN : UOM:39015022167871
Author : Douglas S. Benning
Publisher : Unknown
Page : 516 pages
File Size : 53,5 Mb
Release : 1978
Category : Bird populations
ISBN : UCSD:31822009785213
Individuals or organizations that submitted a report have been credited. Although many of the narrative statements have been briefed, and a few tables deleted or shortened if they contained data submitted previously or in another form, the essential information from each report has been retained to the greatest extent possible
Author : R. Kahler Martinson,James F. Voelzer,Sharon L. Meller
Publisher : Unknown
Page : 490 pages
File Size : 53,5 Mb
Release : 1969
Category : Bird populations
ISBN : UCSD:31822009785130
Groups of data are organized by flyways, from Pacific to Atlantic, with appendixes of tables to correspond. Individuals or organizations that submitted a report have been credited. Although many of the narrative statements have been briefed, and a few tables deleted or shortened if they contained data submitted previously or in another form, the essential information from each report has been retained to the greatest extent possible.
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 46,9 Mb
Release : 2021-12-06
Category : Electronic
ISBN : 1591522943
Through the images of award-winning photographer Gary Kramer and the words of Kramer and Greg Mensik, Waterfowl of the World takes readers on a visual and literary journey in search of all 167 species of ducks, geese, and swans on Earth. Among these are a few on the brink of extinction, like the Madagascar Pocharand Brazilian Merganser; and those that are struggling, such as the White-winged Duck and Baer's Pochard.
Author : Bechtold, Hilde L.
Publisher : Unknown
Page : 170 pages
File Size : 53,7 Mb
Release : 1971
Category : Water birds
ISBN : MINN:31951T00278513M
Author : William P. Johnson,Mark W. Lockwood
Publisher : Texas A&M University Press
Page : 194 pages
File Size : 42,8 Mb
Release : 2013-01-18
Category : Nature
ISBN : 9781603448208
In this beautifully illustrated guide, two practicing wildlife biologists describe the life histories of forty-five species of ducks, geese, and swans that occur in Texas. For common species and those that breed in the state, each account begins with an interesting fact (such as, “Red-breasted Mergansers have been clocked at over 80 mph, the fastest recorded flight speed for a duck . . .”) and provides information on Texas distribution and harvest, population status, diet, range and habitats, reproduction, and appearance. Exquisite photographs, informative distribution maps, and a helpful source list accompany the species descriptions, and the book offers a glossary and full bibliography for those who want to explore the literature further. With the degradation and disappearance of the inland and coastal habitats that these birds depend upon, the natural history of these waterfowl species provides a vital reminder of the interconnectedness and crucial importance of all wetlands. Birders, biologists, landowners, hunters, outdoor enthusiasts, and all those interested in the health and preservation of our coastal and inland wetland resources will enjoy and learn from this book.