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An Analysis Of Osprey Pandion Haliaetus Carolinensis Sexing Methods
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Book Synopsis Catalogue of Publications Issued by the Government of the United States by : United States. Superintendent of Documents
Download or read book Catalogue of Publications Issued by the Government of the United States written by United States. Superintendent of Documents and published by . This book was released on 1980-07 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1980 with total page 1372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hawks from Every Angle by : Jerry Liguori
Download or read book Hawks from Every Angle written by Jerry Liguori and published by Princeton University Press. This book was released on 2016-08-10 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Identifying hawks in flight is a tricky business. Across North America, tens of thousands of people gather every spring and fall at more than one thousand known hawk migration sites--from New Jersey's Cape May to California's Golden Gate. Yet, as many discover, a standard field guide, with its emphasis on plumage, is often of little help in identifying those raptors soaring, gliding, or flapping far, far away. Hawks from Every Angle takes hawk identification to new heights. It offers a fresh approach that literally looks at the birds from every angle, compares and contrasts deceptively similar species, and provides the pictures (and words) needed for identification in the field. Jerry Liguori pinpoints innovative, field-tested identification traits for each species from the various angles that they are seen. Featuring 339 striking color photos on 68 color plates and 32 black & white photos, Hawks from Every Angle is unique in presenting a host of meticulously crafted pictures for each of the 19 species it covers in detail--the species most common to migration sites throughout the United States and Canada. All aspects of raptor identification are discussed, including plumage, shape, and flight style traits. For all birders who follow hawk migration and have found themselves wondering if the raptor in the sky matches the one in the guide, Hawks from Every Angle--distilling an expert's years of experience for the first time into a comprehensive array of truly useful photos and other pointers for each species--is quite simply a must. Key Features? The essential new approach to identifying hawks in flight Innovative, accurate, and field-tested identification traits for each species 339 color photos on 68 color plates, 32 black & white photos Compares and contrasts species easily confused with one another, and provides the pictures (and words) needed for identification in the field Covers in detail 19 species common to migration sites throughout the North America Discusses light conditions, how molt can alter the shape of a bird, aberrant plumages, and migration seasons and sites User-friendly format
Book Synopsis Inventory Methods for Raptors by : Resources Inventory Committee (Canada). Terrestrial Ecosystems Task Force
Download or read book Inventory Methods for Raptors written by Resources Inventory Committee (Canada). Terrestrial Ecosystems Task Force and published by Resources Inventory Committee. This book was released on 2001-01-01 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Raptors of the World by : James Ferguson-Lees
Download or read book Raptors of the World written by James Ferguson-Lees and published by Houghton Mifflin Harcourt. This book was released on 2001 with total page 1002 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plates 1-3 illustrate representatives, in flight, of all 78 genera, grouped by size and zoogeographical regions.".
Book Synopsis Current Ornithology Volume 17 by : Charles F. Thompson
Download or read book Current Ornithology Volume 17 written by Charles F. Thompson and published by Springer Science & Business Media. This book was released on 2010-09-09 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current Ornithology publishes authoritative, up-to-date, scholarly reviews of topics selected from the full range of current research in avian biology. Topics cover the spectrum from the molecular level of organization to population biology and community ecology. The series seeks especially to review (1) fields in which an abundant recent literature will benefit from synthesis and organization, or (2) newly emerging fields that are gaining recognition as the result of recent discoveries or shifts in perspective, or (3) fields in which students of vertebrates may benefit from comparisons of birds with other classes. All chapters are invited, and authors are chosen for their leadership in the subjects under review.
Book Synopsis Bird Species by : Dieter Thomas Tietze
Download or read book Bird Species written by Dieter Thomas Tietze and published by Springer. This book was released on 2018-11-19 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: The average person can name more bird species than they think, but do we really know what a bird “species” is? This open access book takes up several fascinating aspects of bird life to elucidate this basic concept in biology. From genetic and physiological basics to the phenomena of bird song and bird migration, it analyzes various interactions of birds – with their environment and other birds. Lastly, it shows imminent threats to birds in the Anthropocene, the era of global human impact. Although it seemed to be easy to define bird species, the advent of modern methods has challenged species definition and led to a multidisciplinary approach to classifying birds. One outstanding new toolbox comes with the more and more reasonably priced acquisition of whole-genome sequences that allow causative analyses of how bird species diversify. Speciation has reached a final stage when daughter species are reproductively isolated, but this stage is not easily detectable from the phenotype we observe. Culturally transmitted traits such as bird song seem to speed up speciation processes, while another behavioral trait, migration, helps birds to find food resources, and also coincides with higher chances of reaching new, inhabitable areas. In general, distribution is a major key to understanding speciation in birds. Examples of ecological speciation can be found in birds, and the constant interaction of birds with their biotic environment also contributes to evolutionary changes. In the Anthropocene, birds are confronted with rapid changes that are highly threatening for some species. Climate change forces birds to move their ranges, but may also disrupt well-established interactions between climate, vegetation, and food sources. This book brings together various disciplines involved in observing bird species come into existence, modify, and vanish. It is a rich resource for bird enthusiasts who want to understand various processes at the cutting edge of current research in more detail. At the same time it offers students the opportunity to see primarily unconnected, but booming big-data approaches such as genomics and biogeography meet in a topic of broad interest. Lastly, the book enables conservationists to better understand the uncertainties surrounding “species” as entities of protection.
Book Synopsis Habitat Suitability Index Models by : Sandra L. Vana-Miller
Download or read book Habitat Suitability Index Models written by Sandra L. Vana-Miller and published by . This book was released on 1987 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Photographic Guide to North American Raptors by : Brian K. Wheeler
Download or read book A Photographic Guide to North American Raptors written by Brian K. Wheeler and published by . This book was released on 2003 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published: Orlando, Fla.: Academic, 1995.
Download or read book The Emu written by and published by . This book was released on 1997 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recent Ornithological Literature by :
Download or read book Recent Ornithological Literature written by and published by . This book was released on 1997 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Raptors of Europe and the Middle East by : Dick Forsman
Download or read book The Raptors of Europe and the Middle East written by Dick Forsman and published by A&C Black. This book was released on 2007 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the most complete and up to date guide to therecognition of the diurnal raptors of Europe and the Middle East yetpublished. It is written by an acknowledged expert, the author of manydefinitive identification articles and veteran of countless tours andexpeditions. Over 700 high quality colour photographs have beenspecially chosen to show the plumages of each age and sex class ofevery species found in Europe and the Middle East, back up by adetailed text enabling birdwatchers to get to grips with even the mostdifficult species. The photographs are complemented by almost 100drawings focussing on particular identification details, and the wholeis fully referenced with a list of nearly 300 key papers and articles.This book sets a new standard for raptor watching and identification inEurope and further afield.
Book Synopsis Animal Biomarkers as Pollution Indicators by : David B. Peakall
Download or read book Animal Biomarkers as Pollution Indicators written by David B. Peakall and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecotoxicology is a relatively new scientific discipline. Indeed, it might be argued that it is only during the last 5-10 years that it has come to merit being regarded as a true science, rather than a collection of procedures for protecting the environment through management and monitoring of pollutant discharges into the environment. The term 'ecotoxicology' was first coined in the late sixties by Prof. Truhaut, a toxicologist who had the vision to recognize the importance of investigating the fate and effects of chemicals in ecosystems. At that time, ecotoxicology was considered a sub-discipline of medical toxicology. Subsequently, several attempts have been made to portray ecotoxicology in a more realistic light. Notably, both F. Moriarty (1988) and F. Ramade (1987) emphasized in their books the broad basis of ecotoxicology, encompassing chemical and radiation effects on all components of ecosystems. In doing so, they and others have shifted concern from direct chemical toxicity to man, to the far more subtle effects that pollutant chemicals exert on natural biota. Such effects potentially threaten the existence of all life on Earth. Although I have identified the sixties as the era when ecotoxicology was first conceived as a coherent subject area, it is important to acknowledge that studies that would now be regarded as ecotoxicological are much older. Wherever people's ingenuity has led them to change the face of nature significantly, it has not escaped them that a number of biological con sequences, often unfavourable, ensue.
Book Synopsis The Life of Birds by : Joel Carl Welty
Download or read book The Life of Birds written by Joel Carl Welty and published by . This book was released on 1975 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wake-Robin written by John Burroughs and published by Read Books Ltd. This book was released on 2016-12-05 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Wake-Robin", John Burroughs' first book, is a detailed work on birds, being an alluring "invitation to the study of Ornithology". It's aim is to stimulate an interest in the natural history of birds, which Burroughs arguably achieves through a masterful marriage of interesting facts and beautiful writing. John Burroughs (1837 - 1921) was an American naturalist, essayist, and active member of the U.S. conservation movement. Burroughs' work was incredibly popular during his lifetime, and his legacy has lived on in the form of twelve U.S. Schools named after him, Burroughs Mountain, and the John Burroughs Association-which publicly recognizes well-written and illustrated natural history publications. Other notable works by this author include: "Winter Sunshine" (1875), "Birds and Poets" (1877), and "Locusts and Wild Honey" (1879). Contents include: "The Return of the Birds", "In the Hemlocks", "The Adirondacks", "Birds'-Nests", "Spring at the Capital", "Birch Browsings", "The Bluebird", "The Invitation", etc. . Many vintage books such as this are becoming increasingly scarce and expensive. We are republishing this volume now in an affordable, modern, high-quality edition complete with a specially commissioned new biography of the author.
Book Synopsis Current Ornithology by : Val Nolan, Jr.
Download or read book Current Ornithology written by Val Nolan, Jr. and published by . This book was released on 1997-06-30 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eagles, Hawks, and Falcons of the World by : Leslie Brown
Download or read book Eagles, Hawks, and Falcons of the World written by Leslie Brown and published by . This book was released on 1968 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
