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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

More…

Birds News -- ScienceDaily Bird news and research. From chickens to birds of prey, wing design to migration, read all the latest news on birds.

  • Geneticist solves long-standing finch beak mystery
    on November 19, 2018 at 11:41 am

    Biologist have compared the genes of large-beaked Cameroonian finches to those of their smaller-beaked counterparts, found the answer to a 20-year old mystery: 300,000 base pairs, apparently inherited as a unit, always varied between them, and right in the middle of that genetic sequence was the well-known growth factor, IGF-1. […]

  • Songbirds set long-distance migration record
    on November 15, 2018 at 4:54 pm

    Researchers have studied flight routes to determine how far willow warblers migrate in the autumn. The results show that the willow warbler holds a long-distance migration record in the 10-gram weight category -- with the small birds flying around 13,000 kilometers or longer to reach their destination. […]

  • What did birds and insects do during the 2017...
    on November 15, 2018 at 4:53 pm

    In August of 2017, millions peered through protective eyewear at the solar eclipse -- the first total eclipse visible in the continental United States in nearly 40 years. During the event, researchers watched radar to observe the behavior of birds and insects. […]

  • Captive-breeding will not save wild Asian Houbara...
    on November 14, 2018 at 2:58 am

    The survival of the heavily exploited Asian Houbara depends on the regulation of trapping and hunting, according to new research. New findings reveal that trying to stabilize populations solely through captive breeding will require the release of such large numbers it will inevitably compromise wild populations. […]

  • Rare fossil bird deepens mystery of avian...
    on November 13, 2018 at 1:09 pm

    Today's birds descend from a small number of bird species living before the dinosaur extinction. Some of the birds that went extinct, the enantiornithines, were actually more common than and out-competed modern bird ancestors. Analysis of a newly described fossil, the most complete known from the Americas, demonstrates, too, that the enantiornithines were as agile and strong in flight as the ancestors of modern birds. Why, then, did enantiornithines die out and modern birds flourish? […]


Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • What happens to the brain in zero gravity?
    on November 19, 2018 at 3:49 pm

    NASA has made a commitment to send humans to Mars by the 2030s. This is an ambitious goal when you think that a typical round trip will anywhere between three and six months and crews will be expected to stay on the red planet for up to two years before planetary alignment allows for the return journey home. It means that the astronauts have to live in reduced (micro) gravity for about three years – well beyond the current record of 438 continuous days in space held by the Russian […]

  • Sensual fresco discovered in ancient Pompeii...
    on November 19, 2018 at 3:15 pm

    Archaeologists have found a fresco in an ancient Pompeii bedroom that depicts a sensual scene of the Roman god Jupiter, disguised as a swan, and a legendary queen of Sparta from Greek mythology. […]

  • Image: Hubble hooks a cosmic jellyfish
    on November 19, 2018 at 1:57 pm

    At first glance, a bright blue crescent immediately jumps out of this NASA/ESA Hubble Space Telescope image. Is it a bird? A plane? Evidence of extraterrestrial life? No—it's a galaxy. […]

  • Geneticists solve long-standing finch beak mystery
    on November 19, 2018 at 11:52 am

    Bridgett vonHoldt is best known for her work with dogs and wolves, so she was surprised when a bird biologist pulled her aside and said, "I really think you can help me solve this problem." So she turned to a mystery he'd been wrestling with for more than 20 years. […]

  • Swarmlike collective behavior in bicycling
    on November 19, 2018 at 7:38 am

    Whether it's the acrobatics of a flock of starlings or the synchronized swimming of a school of fish, nature is full of examples of large-scale collective behavior. Humans also exhibit this behavior, most notably in pelotons, the mass of riders in bicycle races. […]