The Classification Of Water Birds

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The Classification Of Water Birds

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Author : Joel Asaph Allen
language : en
Publisher:
Release Date : 1871

The Classification Of Water Birds written by Joel Asaph Allen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1871 with categories.

On The Classification Of Water Birds

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Author : Elliott Coues
language : en
Publisher:
Release Date : 1870

On The Classification Of Water Birds 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 1870 with Water birds categories.

Swimming Birds

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Author : Norman A. Calkins
language : en
Publisher: Forgotten Books
Release Date : 2018-01-16

Swimming Birds written by Norman A. Calkins and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-16 with categories.

Excerpt from Swimming Birds: Classification A Duck is a bird, said Fred. See! There are the wings and the feat hers and the bill. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

A History Of British Water Birds Indigenous And Migratory

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Author : William MacGillivray
language : en
Publisher:
Release Date : 1852

A History Of British Water Birds Indigenous And Migratory written by William MacGillivray and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1852 with Water birds categories.

Water Birds

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Author : Prideaux John Selby
language : en
Publisher:
Release Date : 1833

Water Birds written by Prideaux John Selby and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1833 with Birds categories.

Bird Book

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Author : Mauris
language : en
Publisher: Independently Published
Release Date : 2020-07-18

Bird Book written by Mauris and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-18 with categories.

It may not seem important to specifically define the general term "bird" but in doing so every birder can gain a greater appreciation of the animals they love to watch. By understanding the similarities all birds share, we can better notice, appreciate, and enjoy the individual characteristics that make each bird species unique. When we notice those differences more easily, we become better birders and are well on our way to seeing hundreds or thousands of the world's unique bird species.All birds are classified as members of the Kindom Animalia, Phylum Chordata, and Class Aves. While this may seem to be an arbitrary, artificial classification, this general grouping emphasizes that birds are related through many of the characteristics they share, including: Vertebrates: All birds have a backbone, which places them in the Phylum Chordata. Unlike most other vertebrates, however, birds have a lighter skeletal structure filled with hollows, gaps, and air sacs to keep birds lightweight so they can fly more efficiently. Feathers: All birds have evolved feathers, composed of keratin and other proteins and light-reflecting pigments, to serve as body insulation. Different types of feathers may also be ornamental, such as plumes, crests, or streamers. Other feather types help birds control their flight, while some feathers, such as down, are strictly for insulation. Wings: Wings are one of the most defining characteristics of birds. Even flightless birds have vestigial or adapted wings or flippers they may use for swimming, threat displays, or courtship dances. The size and shape of wings vary between species based on how the bird flies and wing markings are useful to identify bird species. Bill: All birds have a bony, keratin-covered projection forming their mouth. This bill is frequently evolved for specific bird diet types, and many birds also use their bills as tools for carrying, drumming, drilling, preening, and other tasks. Some birds even use their bills as weapons or to help regulate body temperature. Warm-blooded: All birds are endothermic, which means they generate their own internal body heat and do not rely exclusively on their environment to maintain their temperature. While many birds will sun themselves to help regulate their temperature, sunning has more than one purpose and is not solely for body temperature maintenance. High metabolism: Birds have a high, efficient metabolism that quickly turns food into usable energy. They have a four-chambered heart and high respiratory rate as well, which helps them be efficient and agile fliers as well as maintain their high body temperatures. Bipedal: All birds have two legs used for perching, walking, hopping, or running. Different types of birds have evolved different leg shapes and lengths to suit their needs. For example, wading birds have thin, long legs suitable for moving through deeper water, while raptors have thicker, more powerful legs for capturing prey. Furcula: Though not visible to birders, every bird has a furcula, or wishbone, that protects the chest cavity during wing beats. This keeps the bird's chest organs safe from excessive pressure as the wings move and birds change altitude. Egg-laying: All birds lay amniotic eggs as part of their reproductive cycle. The eggs have a hard shell and require incubation to continue development until hatching. Egg size, shape, and markings vary for each species, as does the number of eggs laid, necessary incubation time, and the condition of the chicks at hatching. Communication: Birds have highly developed communication skills, and many bird species communicate vocally through elaborate songs and calls. Nonverbal bird sounds are also part of their communication abilities. For many species, extensive communication is part of courtship behavior, territorial defense, parent-chick recognition, and community cooperation.

The Water Birds Of North America

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Author : Spencer Fullerton Baird
language : en
Publisher:
Release Date : 1884

The Water Birds Of North America written by Spencer Fullerton Baird and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1884 with Birds categories.

The Water Birds Of North America

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Author : Baird
language : en
Publisher:
Release Date : 1884

The Water Birds Of North America written by Baird and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1884 with categories.

Containing The History And Description Of Water Birds

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Author : Thomas Bewick
language : en
Publisher:
Release Date : 1826

Containing The History And Description Of Water Birds written by Thomas Bewick and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1826 with Birds categories.

Classification And Inventory Of The World S Wetlands

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Author : C.M. Finlayson
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Classification And Inventory Of The World S Wetlands written by C.M. Finlayson and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

This book brings together, for the first time, information on various wetland classification systems and wetland inventories from around the world, outlining regional, national and local wetland classifications developed in Africa, Australia, Canada, China, Europe, India, South America and the USA. Oriented towards the conservation and management of wetlands, these existing national and regional classification systems have been useful in providing an essential base for the development of an international system. The volume also reviews various attempts at drawing up an inventory of wetlands in different parts of the world, ranging from field and literature surveys to highly sophisticated efforts using aerial photography and satellite imaging. Audience: Workers in wetland ecology, especially those working on classification, inventory, conservation, or management of wetlands at the local, national, regional or international levels.