Bird Census Techniques


Book Description

Wild birds are counted for a wide variety of reasons and by a bewildering array of methods. However, detailed descriptions of the techniques used and the rationale adopted are scattered in the literature, and the newcomer to bird census work or the experienced bird counter in search of a wider view, may well have difficulty in coming to grips with the subject as a whole. While not an end in itself, numerical and distributional census work is a fundamental part of many scientific and conservation studies, and one in which the application of given standards is vital if results are not to be distorted or applied in a misleading way.This book provides a concise guide to the various census techniques and to the opportunities and pitfalls which each entails. The common methods are described in detail, and illustrated through an abundance of diagrams showing examples of actual and theoretical census studies. Anyone with a bird census job to plan should be able to select the method best suited to the study at hand, and to apply it to best effect within the limits inherent in it and the constraints of the particular study.The Royal Society for the Protection of Birds and the British Trust for Ornithology have for many years pioneered the collaboration of amateurs and professionals in various census studies. Three members of their staff, each with extensive field experience, now pool the knowledge of these investigations to lay the groundwork for sound census work in future years.




The Breeding Bird Atlas of Georgia


Book Description

This is a comprehensive historical record of all free-ranging bird species known to be breeding in Georgia around the beginning of the new millennium. The atlas profiles 182 species, from the sociable House Wren to the secretive Black Rail; from the thriving Red-shouldered Hawk to the threatened Wilson's Plover. The atlas is the result of a systematic survey conducted from 1994 to 2001, the massive collaborative effort of several private organizations, public agencies, and many individuals. It offers a wealth of information critical to bird-conservation efforts and provides a baseline so that changes to species ranges, numbers, and other significant aspects of each species' status can be better understood. Each species account includes: Color photograph of the bird Information on the bird's habitat and life history, distribution, population trends, and conservation status. Details discussed include diet, nesting habits, life cycle of the young, predators, and interactions with humans. Color distribution map showing the state's six ecoregions and indicating possible, probable, and confirmed breeding Graphs showing population trends, when appropriate Also included are chapters on the survey methodology, results of the surveys, influence of the physical environments of the state on bird distribution, changes in the avifauna since European settlement, and bird conservation.




The Second Atlas of Breeding Birds of Vermont


Book Description

The long-awaited second atlas of breeding birds in Vermont




The Arizona Breeding Bird Atlas


Book Description

Examines over 270 species of birds known to breed in Arizona, complete with color photos and nesting and migratory data.




Twelve Hundred Miles by Horse and Burro


Book Description

J. Stokley Ligon's work in bird conservation, habitat protection, and wildlife legislation during the mid-twentieth century is well-documented in his own writing and the writing of others. But hovering in the background of Ligon's life story has always been the rumor of a trip he made alone as a young man in 1913 in which he covered much of New Mexico alone on horseback. Details of the trip had faded into history, and Ligon—a self-effacing man—had never published the story. As it turns out, the trek was Ligon's first job with the US Biological Survey, and it did not go entirely undocumented. The breeding bird population report that eventually resulted from the journey, photographs from glass plate negatives, and—perhaps most enticingly—Ligon's own personal diary from these travels are presented here. Not just a compelling account of the expedition itself, the materials and insights found in this volume also reveal aspects of Ligon's family history, his early interest in wildlife, and the development of the wilderness skills needed to undertake such a survey. Using his original itinerary and handwritten report, the authors of this book revisited many of the places that Ligon surveyed and in a few cases were even able to locate and repeat Ligon's early photographs. Combined with a discussion of the conditions of birds and other wildlife then and now, this volume serves as a useful tool for understanding how wildlife numbers, distribution, and habitats changed in New Mexico over the course of the twentieth century. Birding enthusiasts, historians, naturalists, and even armchair adventurers will all find something to love in this chronicle of a young man from a West Texas ranching family with a driving ambition to be a professional naturalist and writer.







The Second Atlas of Breeding Birds in West Virginia


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.




Atlas of the Breeding Birds of Wisconsin


Book Description

Provides 214 two-page species accounts providing information on the species' geographic range, habitat preference, breeding biology, history, conservation concerns, and population trends. Another 23 species less common species are covered in additional accounts. The book also contains color photographs and maps. Data were collected from 1995-2000.




Oklahoma Breeding Bird Atlas


Book Description

Birding is the fastest-growing outdoor pursuit in America. This landmark volume, Oklahoma’s first breeding bird atlas, offers both amateurs and ornithologists a wealth of information about Oklahoma bird species and their distributions. Lavishly illustrated with over 200 color photographs and 200 color maps, the Oklahoma Breeding Bird Atlas is as attractive as it is informative. During the years 1997-2001, more than 100 volunteer birders and professional researchers surveyed nearly 600 locations across all regions of Oklahoma. Their careful records form the basis of the maps in this volume, which show at a glance the breeding distribution of bird species both common and rare in Oklahoma. Detailed species accounts, illustrated with stunning photographs as well as maps, provide information on plumage, habitat, nesting habits, eggs, and the young. An invaluable reference for birders, ornithologists, and natural resource specialists, the atlas will be useful both today and in the future for understanding changes in bird populations over time. The Oklahoma Breeding Bird Atlas is the result of a cooperative effort between the Oklahoma Biological Survey and the Sutton Avian Research Center.




The Summer Atlas of North American Birds


Book Description

The North American Breeding Bird Survey comprises a network of regularly censussed, road-based survey routes and constitutes the most comprehensive set of data on the relative abundance and population trends of these birds during the summer months. Its value was highlighted in 1989, when the data were used to confirm suspected population declines in a number of species of neotropical migrants breeding in the northeastern United States and Canada. In this book Jeff and Amy Price and Sam Droege have used these data to create detailed, computer-generated maps showing the relative abundance of 450 species that summer in the contiguous United States and southern Canada. Tabular information on distribution hotspots for these, and a further 50 or so species too local in occurrence to map effectively, are also presented. As a data-based survey, the focus of the maps is on places where occurrence has been systematically confirmed over a number of years. As such, the maps provide a baseline for future and more regionally based studies. Supporting chapters provide details on the survey methodology, the mapping procedures used, and some current concerns in North American bird conservation.