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All About Birds: Eagle (The Cornell Lab of Ornithology)
Eagle (Wikipedia)

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Resources

These are organized by a classification scheme developed exclusively for Cosma. More…

General

Portal

Avian, Birds (Martindale’s Reference Desk)
All About Birds (The Cornell Lab of Ornithology)

Dictionary

bird : any of a class (Aves) of warm-blooded vertebrates distinguished by having the body more or less completely covered with feathers and the forelimbs modified as wings — Webster

OneLook, Free Dictionary, Wiktionary, Urban Dictionary

Bird Dictionary (Bird Care)

Encyclopedia

Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the 5 cm (2 in) bee hummingbird to the 2.75 m (9 ft) ostrich. They rank as the world’s most numerically-successful class of tetrapods, with approximately ten thousand living species, more than half of these being passerines, sometimes known as perching birds. Birds have wings which are more or less developed depending on the species; the only known groups without wings are the extinct moa and elephant birds. Wings, which evolved from forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in flightless birds, including ratites, penguins, and diverse endemic island species of birds. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. — Wikipedia

Encyclopædia Britannica

Introduction

Audubon Bird Guide (National Audubon Society)

Search

WolframAlpha

Science

Ornithology is a branch of zoology that concerns the study of birds. Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. Most marked among these is the extent of studies undertaken by amateurs working within the parameters of strict scientific methodology.

The science of ornithology has a long history and studies on birds have helped develop several key concepts in evolution, behavior and ecology such as the definition of species, the process of speciation, instinct, learning, ecological niches, guilds, island biogeography, phylogeography, and conservation. While early ornithology was principally concerned with descriptions and distributions of species, ornithologists today seek answers to very specific questions, often using birds as models to test hypotheses or predictions based on theories. — Wikipedia

Encyclopædia Britannica

Introduction to Ornithology (Environmental Science)

Preservation

Cornell Lab of Ornithology
Cornell Lab of Ornithology (YouTube Channel)

History

Exhaustive family tree for birds shows recent, rapid diversification (Eric Gershon, Yale News)
Introduction to the Aves: The Birds (University of California Museum of Paleontology)

Museum

Birds Research (The Field Museum, Chicago)

Ornithology (American Museum of Natural History)
Birds (Smithsonian National Museum of Natural History)

Library

WorldCat, Library of Congress, UPenn Online Books, Open Library

Participation

Education

Birds Above You (Biology4Kids)
Bird Anatomy (Biology4Kids)

Course

OER Commons: Open Educational Resources

Community

Organization

National Audubon Society

News

Birds in the News (National Audubon Society)
Science Daily, Phys.org, NPR Archives

Book

ISBNdb

Government

Document

USA.gov

Expression

Hobby

ebird (The Cornell Lab of Ornithology)

Birding and Wild Birds (The Spruce)
Birding (National Audubon Society)
Audubon Bird Guide (National Audubon Society)
American Birding Association

Arts

The Wall of Birds (The Cornell Lab of Ornithology)

Poem

OEDILF: The Omnificent English Dictionary In Limerick Form

Music

Song Lyrics

returntotop

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