When Birds Change Their Feathers
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When Birds Change Their Feathers
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Author : Roma Gans
language : en
Publisher:
Release Date : 1980
When Birds Change Their Feathers written by Roma Gans and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Nature categories.
Describes how and why animals shed their feathers, hair, shells, horns etc., with emphasis on the molting of birds.
How The Birds Changed Their Feathers
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Author :
language : en
Publisher:
Release Date : 1992
How The Birds Changed Their Feathers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
Why Do Birds Have Feathers
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Author : Pat Jacobs
language : en
Publisher: The Rosen Publishing Group, Inc
Release Date : 2016-12-15
Why Do Birds Have Feathers written by Pat Jacobs and has been published by The Rosen Publishing Group, Inc this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-15 with Juvenile Nonfiction categories.
From ostriches to pigeons, there are many kinds of birds on Earth. How did they evolve? How have they changed to fit their environment? This book answers these questions and more as it brings readers face to face with birds of all sizes, shapes, and abilities. Readers will learn about early birds, such as the Archaeopteryx, and what we’ve learned from their fossils. They’ll also learn about the classifications for birds that are alive today, such as perching birds, raptors, and flightless birds. Colorful pictures, diagrams, and sidebars take readers on an adventure to meet these amazing feathered friends.
Arnie The Darling Starling
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Author : Margarete Sigl Corbo
language : en
Publisher: Hamlyn
Release Date : 1983
Arnie The Darling Starling written by Margarete Sigl Corbo and has been published by Hamlyn this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Starlings as pets categories.
Ivory Horn And Blood
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Author : Ronald Isaac Orenstein
language : en
Publisher:
Release Date : 2013
Ivory Horn And Blood written by Ronald Isaac Orenstein and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with African elephant categories.
Describes the illegal trafficking of elephant ivory and rhinoceros horns and the implications for these endangered animals.
Molt In Neotropical Birds
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Author : Erik I. Johnson
language : en
Publisher: CRC Press
Release Date : 2017-10-16
Molt In Neotropical Birds written by Erik I. Johnson and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-16 with Nature categories.
Molt is an important avian life history event in which feathers are shed and replaced. The timing, duration, seasonality, extent and pattern of molt follows certain strategies and this book reviews and describes these strategies for nearly 190 species based on information gathered from a 30-year study of Central Amazonian birds. Most species accounts are illustrated with several color photos focusing on wing and tail feather molt, molt limits, and how to use these patterns to accurately age birds. Published in collaboration with and on behalf of the American Ornithological Society, this volume in the highly-regarded Studies in Avian Biology series is a rich source of life history information for ornithologists working on tropical birds.
The Biology Of Moult In Birds
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Author : Lukas Jenni
language : en
Publisher: Bloomsbury Publishing
Release Date : 2020-09-17
The Biology Of Moult In Birds written by Lukas Jenni and has been published by Bloomsbury Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-17 with Nature categories.
The first comprehensive review of all aspects of the biology of moult, drawing information from across the literature and in all birds, from penguins to passerines. Feathers are amazing structures unique to birds and, for a variety of reasons, they need to be renewed periodically as a whole in a process called moult. During this process, all of the functions of plumage are impaired and most aspects of a bird's life are affected. Every moult determines a bird's appearance anew, and restores plumage efficacy for flight and insulation. Moult profoundly affects physiology and the organization of the annual cycle, and it constrains reproduction and migration. Given these major impacts, which are equal to the other annual challenges of reproduction and migration, it is surprising that research on moult has largely been so neglected a subject. Lukas Jenni and Raffael Winkler have brought together the widely scattered results of studies on the processes and consequences of moult in birds. This book opens with an overview of the functions of plumage, and of feather maintenance and feather wear, and then introduces the two functions of moult: replacement of worn feathers and adjustment of plumage characteristics and appearance. The body of the book then examines feather-growth and the physiology, energetics and control of moult, and how various other physiological processes interact with moult and may compensate for its costs. Significantly, the authors explain how variations in moult and feather quality affect a bird's overall plumage quality, and they highlight the resulting consequences in terms of physical performance, appearance and signalling. Finally, there is a review of all the various solutions that birds have developed to fit moult into the annual cycle. This long-awaited book covers for the first time all aspects of the biology of moult and fills an important gap in the literature, completing our understanding of how the most important annual events in a bird's life fit together into a coherent whole. It draws on a wide range of information – from penguins to small passerines, from raptors to wildfowl – to highlight the variety of the subject and to pinpoint the many gaps in our knowledge along with avenues for fruitful further research.
The Changes Of Plumage In The Dunlin And Sanderling
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Author : Frank Michler Chapman
language : en
Publisher:
Release Date : 1896
The Changes Of Plumage In The Dunlin And Sanderling written by Frank Michler Chapman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1896 with Birds categories.
The Evolution Of Feathers
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Author : Christian Foth
language : en
Publisher: Springer Nature
Release Date : 2020-03-11
The Evolution Of Feathers written by Christian Foth and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-11 with Science categories.
Feathers are one of the most unique characteristics of modern birds and represent the most complex and colourful type of skin derivate within vertebrates, while also fulfilling various biological roles, including flight, thermal insulation, display, and sensory function. For years it was generally assumed that the origin of flight was the main driving force for the evolution of feathers. However, various discoveries of dinosaur species with filamentous body coverings, made over the past 20 years, have fundamentally challenged this idea and produced new evolutionary scenarios for the origin of feathers. This book is devoted to the origin and evolution of feathers, and highlights the impact of palaeontology on this research field by reviewing a number of spectacular fossil discoveries that document the increasing morphological complexity along the evolutionary path to modern birds. Also featuring chapters on fossil feather colours, feather development and its genetic control, the book offers a timely and comprehensive overview of this popular research topic.
Handbook Of Field And General Ornithology
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Author : Elliott Coues
language : en
Publisher:
Release Date : 1890
Handbook Of Field And General Ornithology written by Elliott Coues and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1890 with Birds categories.
