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Smithsonian Migratory Bird Center - http://nationalzoo.si.edu/ConservationAndScience/MigratoryBirds/
Ecological and land-management research, education, conservation policy, data on migration and fact sheets. |
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http://www.nmnh.si.edu/BIRDNET/ - http://www.nmnh.si.edu/BIRDNET/
Ornithological Council's website with comprehensive data about North American ornithological resources. |
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Bird Banding Laboratory - http://www.pwrc.usgs.gov/bbl/
Based at the USGS Patuxent Wildlife Research Center, issues permits to researchers in the United States who place uniquely numbered bands (rings) on birds' legs. Site features the history of banding and reporting of bird band observations. |
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Raptor Information System - http://ris.wr.usgs.gov
The RIS is a free searchable catalog of over 38,000 references about the biology and management of birds of prey. |
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Electronic Resources on Ornithology - http://www.chebucto.ns.ca/Environment/NHR/bird.html
Annotated links and ornithological articles by Christopher Majka. |
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Teachers' Domain: Bird Beak Gallery - http://www.teachersdomain.org/resources/tdc02/sci/life/stru/beakgallery/index.html
Provides an essay on beaks, and photographs of birds heads and beaks. |
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ABCD: Avian Brain Circuitry Database - http://www.behav.org/abcd/abcd.php?proc=ares
Searchable database of the regions of a bird’s brain. |
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Polygyny - http://www.stanford.edu/group/stanfordbirds/text/essays/Polygyny.html
Most birds are monogamous, but in some species the occurrence of polygyny, where one male mates with more than one female, is related to high-quality territories with an abundance of resources. |
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A Qualitative and Quantitative Study of the Lung of an Ostrich - http://jeb.biologists.org/cgi/content/full/204/13/2313
The colossal body size, the relinquishment of flight and the extreme thermal stresses on the ground make the examination of an ostrich’s lungs rewarding. |
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Feather Quest - http://www.nmnh.si.edu/BIRDNET/FeatherQuest/FeatherQuest.html
Interactive quiz. Can you identify the birds from which these feathers come? |
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Vocal Dialects - http://www.stanford.edu/group/stanfordbirds/text/essays/Vocal_Dialects.html
Article describing how the songs of many avian species show geographic variation. |
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Sexual Selection - http://www.stanford.edu/group/stanfordbirds/text/essays/Sexual_Selection.html
Female birds of some species tend to choose as mates those males holding the most desirable territories, but there is little evidence that females preferentially select males with different degrees of ornamentation. |
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Parental Care - http://www.stanford.edu/group/stanfordbirds/text/essays/Parental_Care.html
The young of passerines when first hatched are naked, blind, and helpless and require much care which involves feeding, training and protection from predators. |
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Incubation: Heating the Egg - http://www.stanford.edu/group/stanfordbirds/text/essays/Incubation.html
Most birds create the required temperature by sitting on their eggs but some transfer heat through their webbed feet, and the megapodes of Australia bury them in a mound of decaying vegetation. |
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When and How do Birds Migrate - http://www.earthlife.net/birds/migration2.html
Article discussing the varying strategies adopted by birds in finding their way when taking part in their long distance journeys. |
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Sense of Direction - http://www.princeton.edu/pr/pwb/04/0503/1b.shtml
Article from the Princeton Weekly Bulletin outlining how Biologist Martin Wikelski is helping to settle the long-standing debate over how migratory birds manage to navigate in darkness and bad weather. |
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EcoBirds Behaviour - http://birds.ecoport.org/Behaviour/EBbehaviour.htm
Provides a series of bird articles covering nesting, song, migration and the curious habit of anting. |
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Bird Milk - http://www.stanford.edu/group/stanfordbirds/text/essays/Bird_Milk.html
Article describing how the young of some birds are fed on special secretions from their parents. |
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Urban Birds - http://www.stanford.edu/group/stanfordbirds/text/essays/Urban_Birds.html
Article discussing how birds have adapted to urban foraging amid the artificial concrete and steel ecosystems of cities. |
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http://www.ipedia.net/information/Beak - http://www.ipedia.net/information/Beak
Article describing the anatomy of this distinctive feature of birds which, in addition to eating, can be used for grooming, manipulating objects, killing prey, probing for food, courtship, and feeding the young. |