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| Author | : Malcolm Alexander Ogilvie |
| Publisher | : |
| Total Pages | : 112 |
| Release | : 2003-01 |
| Genre | : Grebes |
| ISBN | : 9781872842035 |
Gives an introduction on the origin, evolution, distribution, physiology and behaviour of grebes, followed by accounts of each of the 22 species. This work provides information on distribution, population, behaviour and other aspects for each account. It also includes two identification plates which help in identifying their features in the field.
| Author | : Colin O'Donnel |
| Publisher | : World Conservation Union |
| Total Pages | : 72 |
| Release | : 1997 |
| Genre | : Nature |
| ISBN | : |
Grebes are specialized waterbirds which inhabit marshlands and reed-fringed lakes. Their dependence on wetlands is total and as a result they are particularly vulnerable to changes in ecosystems and their deterioration. So adapted are they to the wetlands they inhabit that they are an ideal indicator of the health of wetlands and the changes taking place, changes often imperceptible to humans. Since c. 1970, two of the 22 recognized species of grebes have gone extinct and two others are in a critical situation. One of the greatest threats to their survival is loss of habitat. This action plan reviews the threats to grebes throughout the world and their current status and proposes a series of eight priority actions to ensure their survival.
| Author | : Clive Roots |
| Publisher | : Bloomsbury Publishing USA |
| Total Pages | : 235 |
| Release | : 2006-09-30 |
| Genre | : Science |
| ISBN | : 0313083940 |
We share the earth with a wide variety of animal species, each of which brings something special to the diversity of the planet. By knowing more about how animals behave and live, we gain a greater understanding of how life evolved and the importance of biodiversity. This volume provides a complete guide to those birds that have evolved a trait that would seem to harm their ability to survive - flightlessness. Flight has its advantages - why would some birds be flightless? Flightless Birds covers the loss of flight in birds, both permanently after years of evolution, and temporarily as a result of unusual molting behavior, and those species that are in various stages of losing their flight. The book provides a thorough guide, perfect for research papers in biology classes, for understanding the behavior and biodiversity of a fascinating and unusual group of animals. Flightless Birds includes sections on the major groups of flightless birds: Rarities whose ancient ancestors were on the continents when they broke away millions of years ago, and who survived despite competing with mammals; birds that were marooned on islands in the ocean, where food was plentiful and predators absent; penguins, which evolved alongside seas teeming with food and had no need to fly, and the special case of New Zealand's many flightless species which evolved in a predator-free paradise but could not cope with the settlers and their alien animals; and the many species which have become extinct within historic times. Beautifully illustrated, with numerous color photos, Flightless Birds provides copious material for understanding these unusual animals.
| Author | : David Ward Winkler |
| Publisher | : |
| Total Pages | : 599 |
| Release | : 2015 |
| Genre | : Birds |
| ISBN | : 9788494189203 |
This volume is a synopsis of the diversity of all birds. It distills the voluminous detail of the 17-volume Handbook of Birds of the World into a single book. Based on the latest systematic research and summarizing what is known about the life history and biology of each group, this volume is the best single-volume entry to avian diversity available.
| Author | : Steve N. G. Howell |
| Publisher | : Princeton University Press |
| Total Pages | : 360 |
| Release | : 2019-08-20 |
| Genre | : Nature |
| ISBN | : 0691175012 |
A state-of-the-art photographic field guide to the world's oceanic birds Oceanic birds are among the most remarkable but least known of all birds, living at sea, far from the sight of most people. They offer unusual identification challenges—many species look similar and it can be difficult to get good views of fast-flying birds from a moving boat. The first field guide to the world's oceanic birds in more than two decades, this exciting and authoritative book draws on decades of firsthand experience on the open seas. It features clear text filled with original insights and new information and more than 2,200 carefully chosen color images that bring the ocean and its remarkable winged inhabitants to life. Never before have oceanic birds been presented in such an accessible and comprehensive way. The introduction discusses the many recent developments in seabird taxonomy, which are incorporated into the species accounts, and these accounts are arranged into groups that aid field identification. Each group and species complex has an introductory overview of its identification challenges, illustrated with clear comparative photos. The text describes flight manner, plumage variation related to age and molt, seasonal occurrence patterns, migration routes, and many other features. The result is an indispensable guide for exploring birding's last great frontier. A comprehensive, authoritative, and accessible guide to oceanic birds Covers more than 270 species Includes more than 2,200 color photos with concise captions noting key features Features careful species comparisons, overviews of the latest taxonomy, tips on how to observe and ID birds at sea, and much more
| Author | : Miranda Krestovnikoff |
| Publisher | : Bloomsbury Publishing USA |
| Total Pages | : 64 |
| Release | : 2021-04-06 |
| Genre | : Juvenile Nonfiction |
| ISBN | : 1547607467 |
A heavily designed and stunning look at the many birds of the sky--perfect for fans of Botanicum. From the bitter cold polar regions to the lush tropics, birds have found incredible ways to adapt and survive anywhere. White-winged diuca finches nest high upon freezing glaciers and mightly peregrine falcons circle skyscrapers in busy cities. Look up! What birds can do is extraordinary. The statuesque golden eagle spots prey from miles away. You can tell what time of day an owl hunts by looking at the color of its eyes. With its long, muscular legs, the secretary bird has a powerful kick that is enough to kill large prey like snakes and hares. Discover which bird is the fastest, the smallest, the smartest, the most colorful and more in this nonfiction compendium, complete with descriptions from wildlife expert Miranda Krestovnikoff and stunning linocuts from artist Angela Harding.
| Author | : Anne LaBastille |
| Publisher | : W. W. Norton & Company |
| Total Pages | : 320 |
| Release | : 1991-09 |
| Genre | : Nature |
| ISBN | : 9780393308006 |
The bestselling author of Woodswoman and Beyond Black Bear Lake relates her own attempts to halt the decline of a single species of bird found only in Guatemala.
| Author | : Gary W. Kaiser |
| Publisher | : UBC Press |
| Total Pages | : 402 |
| Release | : 2010-10-01 |
| Genre | : Science |
| ISBN | : 0774859814 |
Birds are among the most successful vertebrates on Earth. An important part of our natural environment and deeply embedded in our culture, birds are studied by more professional ornithologists and enjoyed by more amateur enthusiasts than ever before. However, both amateurs and professionals typically focus on birds' behaviour and appearance and only superficially understand the characteristics that make birds so unique. The Inner Bird introduces readers to the avian skeleton, then moves beyond anatomy to discuss the relationships between birds and dinosaurs and other early ancestors. Gary Kaiser examines the challenges scientists face in understanding avian evolution - even recent advances in biomolecular genetics have failed to provide a clear evolutionary story. Using examples from recently discovered fossils of birds and near-birds, Kaiser describes an avian history based on the gradual abandonment of dinosaur-like characteristics, and the related acquisition of avian characteristics such as sophisticated flight techniques and the production of large eggs. Such developments have enabled modern birds to invade the oceans and to exploit habitats that excluded dinosaurs for millions of years. While ornithology is a complex discipline that draws on many fields, it is nevertheless burdened with obsolete assumptions and archaic terminology. The Inner Bird offers modern interpretations for some of those ideas and links them to more current research. It should help anyone interested in birds to bridge the gap between long-dead fossils and the challenges faced by living species.
| Author | : Les Beletsky |
| Publisher | : JHU Press |
| Total Pages | : 540 |
| Release | : 2006 |
| Genre | : Nature |
| ISBN | : 9780801884290 |
This stunning collection of art and text captures the grace, beauty, and flamboyance of the world's birds. It features more than 1,600 original paintings from 11 of the world's leading bird artists.
