Download or read book Current Ornithology written by D.M. Power and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited series has three principal goals. The first is to provide information in a relatively concise way for researchers needing an over view of specific disciplines. The second is to provide an update on specific schools of thought, bringing together ideas from colleagues whose works often appear in a variety of journals. And the third is to stimulate and suggest directions for new research. Volume 6 continues the tradition established by the previous editor and editorial board in providing new information, updating our understanding of specific dis ciplines, and stimulating new research. In the first chapter, Randall Breitwisch examines mortality patterns and sex ratios in monogamous birds. He argues that there are many more components to measuring parental investment than are often re alized; our knowledge is weak in several areas. Understanding the evo lution of mating systems depends on better distinguishing the different intensities of natural selection that operate on males and females. Greg ory Butcher and Sievert Rohwer develop a framework for assessing the role of colorfulness in birds. They propose several hypotheses to test and advocate evaluating more than one hypothesis at a time. Future work on the evolution of distinctive coloration and of sexual and age dimorphism must take these ideas into account.

Download or read book Raptor survey techniques written by Mark R. Fuller and published by . This book was released on 1987 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Migrations of Hawks written by Donald S. Heintzelman and published by . This book was released on 1986-10-22 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are forty species of hawks in North America, including vultures, the California condor, and the bald eagle, our national bird. Heintzelman's monumental study is a comprehensive survey of what we know about the migrations of these magnificent birds in North America, Central America, and the West Indies. After a general introduction on migration season, speeds, and methodology, eleven detailed chapters survey migration routes and statistics in all the following regions: eastern and western Canada, the Great Lakes area, New England, the Middle Atlantic states, southern Appalachia, the Gulf Coast, the Central states, Western states, Central America, and the West Indies. Subsequent chapters deal with the influence of weather systems and local weather variables, updrafts, thermals, altitudes and the daily rhythm of migrations, the influence of age and geography, and the role of hawk counts as indices to population trends.

Download or read book Wisconsin Birdlife written by Samuel D. Robbins and published by Univ of Wisconsin Press. This book was released on 1991 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: As initially planned in 1939 by Owen J. Gromme, then curator of birds at the Milwaukee Public Museum, Wisconsin Birdlife would not only describe and document every species of bird known to have visited this state, but would also depict each species with his own original paintings. During the next two decades, Gromme concentrated primarily on the latter, resulting in the separate publication in 1963 of his now classic Birds of Wisconsin. Work on the present volume was assumed in the late 1960s by Samuel D. Robbins, whose labors of more than 20 years give us a veritable encyclopedia of the state's ornithological knowledge. A complement and supplement to field guides, picture books, and recordings, the book is designed to enlarge the reader's understanding and appreciation of statewide history, abundance, and habitat preference of every species reliably recorded in Wisconsin. The volume opens with a summary of the ornithological history of the state and an exposition of its ecological setting. The heart of Wisconsin Birdlife ensues: detailed accounts of nearly 400 species, with information on status (population and distribution), habitat, migration dates, breeding data, and wintering presence, followed by extensive discussion and commentary. Dr. James Hall Zimmerman, Senior Lecturer in Landscape Architecture at the University of Wisconsin-Madison, provides a special discussion of bird habitats for the book. In addition, Wisconsin Birdlife features a comprehensive status and seasonal distribution chart, a detailed habitat preference chart, and an exhaustive bibliography. The ultimate resource, Wisconsin Birdlife belongs within easy reach of everyone from armchair appreciators and casual birdwatchers to ardent birders and professional ornithologists.

Download or read book Wildlife Review written by and published by . This book was released on 1973 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Newsletter of the Hawk Migration Association of North America written by Hawk Migration Association of North America and published by . This book was released on 1975 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bird Migration Over Southeastern Canada the Western Atlantic and Puerto Rico written by William John Richardson and published by . This book was released on 1976 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Birds of Prey written by Leslie Brown and published by . This book was released on 1977 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Raptor Research written by and published by . This book was released on 1976 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Survey Designs and Statistical Methods for the Estimation of Avian Population Trends written by John R. Sauer and published by . This book was released on 1990 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1954 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Report written by and published by . This book was released on 1990 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Illinois Audubon written by and published by . This book was released on 1993 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Animal Behaviour Abstracts written by and published by . This book was released on 1974 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biology of Animal Behavior written by James W. Grier and published by . This book was released on 1992 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book EBBA News written by and published by . This book was released on 1974 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Raptor Management Techniques Manual written by Beth A. Giron Pendleton and published by . This book was released on 1987 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: