| Ornithology: Science of Birds |
| Index to Ornithology |
| http://www.ornithology.com/ |
| Includes data on the science of wild birds, with an emphasis on conservation and education. |
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| selobj, preloadimages, selectedindex, function, restore, length, arguments, document, options, locat ion, jumpmenu, images, ornithology |
ornithology.com - rank der domain 950722 (356836 in US)
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| Electronic Resources on Ornithology |
| 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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| natural-history bird ornithology biology
zoology aves |
| birding, society, ornithological, ornithology, museum, software, ornithologists, research, center, n atural, birdwatching, american, breeding, national, canada, history, observatory, nature, zealand, s cotia, america, association, africa, flight, centre, program, wildlife, african, sweden, northern, s horebird, foundation, partners, usenet, raptor, international, florida, resources, provincial, migra tion, minnesota, netherlands, ontario, maryland, massachusetts, council, queensland, carolina, engla nd, oiseaux, bluebird |
| (SLD : ns.ca) |
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| Birdnet |
| BIRDNET :: All about Ornithology, the Scientific Study of Birds |
| http://www.nmnh.si.edu/BIRDNET/ |
| Ornithological Council's website with comprehensive data about North American ornithological resourc es. |
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| Ornithology, Ornithological Council, Ornithologist, Bird, BIRDNET, Curry, American Ornithologists' U nion, Association of Field Ornithologists, Cipamex, Cooper Ornithological Society, Pacific Seabird G roup, Wilson Ornithological Society, Raptor Research Foundation, The Waterbird Society, Society of C aribbean Ornithology, Society of Canadian Ornithologists, Birding, ornithology, bird, ornithologist, aves |
| birdnet, council, ornithological, eacute, robert, please, society, webmaster, public, content, infor mation, ornithology, smithsonian, villanova, institution, history, subject, mentioning, responsible, related, comments, presentation, original, update, javascript, support, milonic, recent, groups, un less, otherwise, institutions, appropriate, specific, questions, rights, reserved, natural, material , direct, associationof, fieldornithologists, cipamex, americanornithologists, ornithological, socie ties, sociedad, oacute, conservaci, estudio, hemisphere |
si.edu - rank der domain 7395 (2809 in US)
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| Science/Biology/Zoology/Chordates/Ornithology |
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| Science/Biology/Zoology/Chordates/Ornithology |
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| Bird Skull Collection |
| WILL'S SKULL PAGE - HOMEPAGE |
| http://www.skullsite.co.uk/ |
| Images and data about skulls of western Palearctic and Tropical species, with complete skeletons of some species. |
| Will's Skull Page homepage, links to species list, glossary etc |
| mammal skulls, skulls, skull, will higgs, will, will's, glossary, tusk, cranium, bone, skeleton, sk eletal, pic, pics, jaw, teeth, tooth, english name, scientific name, skull pics, measurement, dimen sion, length, width |
| latest, project, preparing, interest, glossary, contact, closer, thanks, counter, recently, topped, skulls, taking, freefind, 445876, partition, powered, species, search, assure, minimalism, website, welcome, incarnation, surprise, homepage, background, british, padding, selected, library, eeffee, a rchiving |
| (SLD : skullsite.co.uk) |
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| Smithsonian Migratory Bird Center |
| Smithsonian Migratory Bird Center |
| http://nationalzoo.si.edu/ConservationAndScience/MigratoryBirds/ |
| Ecological and land-management research, education, conservation policy, data on migration and fact sheets. |
| Ecological and land-management research, education, conservation policy information on migratory bir ds, bird migration, and biodiversity in the Neotropics. |
| Smithsonian Migratory Bird Center, migratory birds, bird migration, migratory bird |
| navigation, border, marginleft, backgroundcolor, background, bordercolor, direction, migratorybirds, horizontal, coffee, marginbottom, migratory, gradient, borderstyle, height, document, headers, imag es, smithsonian, pagetracker, download, weight, national, center, shockwave, resources, education, v ersion, ffffff, coffee, volcano, events, change, membership, protect, celebrate, location, quality, pluginspage, promos, gajshost, swflash, protocol, copyright, resident, privacy, migrant, birdswho, c onnect, version, shockwaveflash |
si.edu - rank der domain 7395 (2809 in US)
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| List of Essays |
| Birds of Stanford |
| http://www.stanford.edu/group/stanfordbirds/SUFRAME.html |
| Many articles on every aspect of bird life. A comprehensive and useful resource. |
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| browsers, frames, support, supporting, design, frames, customize, entire, stanford, displayed |
stanford.edu - rank der domain 1188 (501 in US)
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| Avian Reproduction: Anatomy and the Bird Egg |
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| http://people.eku.edu/ritchisong/avianreproduction.html |
| Notes on the bird reproductive system and the development of the embryo, with explanatory drawings a nd photographs. |
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eku.edu - rank der domain 78268 (29822 in US)
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| Avian Reproduction: Clutch Size, Incubation and Hatching |
| Clutch size, incubation & hatching |
| http://people.eku.edu/ritchisong/avianreproduction2.html |
| Notes on clutch size optimization in birds, reproductive success, embryo development, incubation and the hatching process, with links to other similar articles. |
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| breeding, fitness, survival, species, selection, reproductive, success, factors, hypothesis, between , fecundity, phenotypes, tangent, adaptive, function, clutch, attempt, natural, investment, negative , possible, higher, albatross, annual, represents, chickadee, longevity, specific, ricklefs, experie nce, correlation, different, reproduction, clutch, individuals, relationship, optimum, effort, withi n, bounded, productivity, single, positive, increases, surviving, allocated, resources, relative, be cause, likely, favors |
eku.edu - rank der domain 78268 (29822 in US)
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| Science/Biology/Zoology/Chordates/Ornithology |
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| Bird Respiratory System |
| Bird Respiratory System |
| http://people.eku.edu/ritchisong/RITCHISO/birdrespiration.html |
| Article explaining how air sacs play an important part in the gaseous exchange in birds, with many d iagrams. |
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| capillaries, respiratory, through, oxygen, system, thoracic, mammals, trachea, posterior, anterior, exchange, during, abdominal, parabronchial, volume, breathing, source, inspiration, tracheal, parabr onchi, dioxide, located, carbon, cervical, during, expiration, arrows, larger, surface, pulmonary, m oving, chemoreceptors, network, bronchi, ventilation, capillary, several, vertebral, membrane, cavit y, caudal, breathe, primary, respiration, relatively, extrapulmonary, ludders2, diffuses, exhalation , chapter, vertebrae |
eku.edu - rank der domain 78268 (29822 in US)
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| Mechanics of Respiration in Birds |
| Note: Respiration |
| http://education.vetmed.vt.edu/Curriculum/VM8054/Labs/Lab26/Notes/birdresp.htm |
| Notes and diagrams explaining how birds ventilate their lungs. |
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| caudal, cranial, trachea, system, beginning, volume, exchange, directly, breath, moment, mesobronchu s, through, inspired, inspiration, paired, incoming, unpaired, inflated, resting, before, second, ve ntilate, respiratory, inspiratory, bellows, expanding, oxygen, airway, respiration, compression, dis tention, abdomen, straight, movement, mammals, exhalation, situation, process, continuous, processed , expiratory, throughout, previous, except, repeats, reverse, inhalation, expelled, results, muscle, remember |
vt.edu - rank der domain 6004 (2224 in US)
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| A Qualitative and Quantitative Study of the Lung of an Ostrich |
| A qualitative and quantitative study of the lung of an ostrich, Struthio camelus -- Maina and Nathaniel 204 (13): 2313 -- Journal of Experimental Biology |
| 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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| nathaniel, biology, experimental, journal, camelus, ostrich, quantitative, qualitative, struthio |
biologists.org - rank der domain 167105 (65038 in US)
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| Population Dynamics |
| Population Dynamics |
| http://www.stanford.edu/group/stanfordbirds/text/essays/Population_Dynamics.html |
| Essay discussing the factors behind the variation in the number of individuals in a bird population over time. |
| Population Dynamics |
| Population Dynamics |
| population, territories, populations, breeding, density, habitat, female, mortality, generation, sta ble, through, unoccupied, growth, population, dynamics, winter, average, replaced, contrast, outputs , constant, between, number, example, previously, crossbills, influence, habitats, island, bottom, s eason, sparrows, supply, changes, increased, florida, result, destroyed, chicks, natality, immigrati on, shrink, higher, however, predators, numbers, factors, dynamics, inputs, emigration, greater |
stanford.edu - rank der domain 1188 (501 in US)
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| Site Tenacity |
| Site Tenacity |
| http://www.stanford.edu/group/stanfordbirds/text/essays/Site_Tenacity.html |
| Many birds return to the same nesting site each season. This essay discusses why this should be so. |
| Site Tenacity |
| Site Tenacity |
| tenacity, nesting, colony, breeding, return, physical, stability, predation, success, species, likel y, following, individual, studies, swifts, throated, territories, colleagues, previously, particular , america, swallow, dobkin, flooding, swallows, tailed, developed, properties, unsuccessful, related , important, common, variety, tendency, austin, tenacity, behavior, ontario, territory, kingbirds, e astern, realization, philopatry, course, scarcity, suitable, fledge, previous, successful, fidelity, supply |
stanford.edu - rank der domain 1188 (501 in US)
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| Flapping Flight: Inertial Studies |
| The moment of inertia of bird wings and the inertial power requirement for flapping flight -- Berg and Rayner 198 (8): 1655 -- Journal of Experimental Biology |
| http://jeb.biologists.org/cgi/reprint/198/8/1655 |
| Technical article by researchers at Bristol University who measured the wings of bats and birds and calculated their efficiency in flight. |
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| document, handleonbeforeprint, window, expected, please, results, trying, format, frames, support, b rowser, reprint, unframed, onbeforeprint, toolbar, acrobat, located, immediately, printalert, printe r, browsers, rayner, flight, experimental, journal, flapping, inertia, moment, requirement, inertial , biology, effect, function |
biologists.org - rank der domain 167105 (65038 in US)
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| Flight in Birds |
| The Earthlife Web - Flight in Birds |
| http://www.earthlife.net/birds/flight.html |
| How do birds fly? An introduction to flight in birds examining wing shape, airflows, flapping flight and gliding. |
| How do birds fly? An introduction to flight in birds. |
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| flight, gliding, different, aspect, pressure, updrafts, because, better, around, height, loading, fl apping, another, flight, generate, changes, vultures, however, ground, physical, flapping, soaring, between, shaped, gliders, physics, metres, faster, weighs, trailing, vulture, complicated, propertie s, aerofoil, forward, causes, heated, shapes, pushes, passing, movement, quickly, anything, opposite , important, hornbill, needed, before, effectively, thermal, experiences |
earthlife.net - rank der domain 755707 (306562 in US)
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| Development and Uses of Avian Skeleton Collections |
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| http://www.boc-online.org/PDF/vol124/Storrs%20Olson.pdf |
| Skeletons are essential for the identification of fossils, bones from archaeological sites and food items taken by predators as well as histological and physiological studies. |
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| (SLD : boc-online.org) |
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| Feather Quest |
| BIRDNET: 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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| feather, birdnet, return, photograph, identify, feather, object, follow, characteristic, defining, f eathers, feathers, examination, learned |
si.edu - rank der domain 7395 (2809 in US)
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| Raptor Information System |
| Welcome |
| http://ris.wr.usgs.gov/ |
| The RIS is a free searchable catalog of over 38,000 references about the biology and management of b irds of prey. |
| this is where a site description needs to go to help search engines rank and index the site |
| raptor, owl, eagle, vulture, hawks, falcon, biology, management, usgs, u.s. geological survey, brd, fresc, biological resources discipline, gbip, great basin, sagebrush, |
| keyword, species, articles, information, search, development, station, ecosystem, service, forest, r angeland, center, science, library, comments, appreciated, website, contact, assistance, biological, national, extensive, resource, information, infrastructure, further, program, particular, theses, i ncludes, government, reports, literature, catalog, keyworded, welcome, management, biology, referenc es, regarding, raptors, raptor, typing, referring, fields, author, worldwide, publication, combinati on |
usgs.gov - rank der domain 2085 (834 in US)
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| Territoriality |
| Territoriality |
| http://www.stanford.edu/group/stanfordbirds/text/essays/Territoriality.html |
| Article describing how birds try to exclude others of the same species from their home range. |
| Territoriality |
| Territoriality |
| territories, species, defend, territoriality, square, individual, habitat, course, immediate, varies , vicinity, displays, resource, hummingbirds, francisco, nectar, territory, patches, search, attempt , supply, reduce, predators, predator, territory, resources, defense, breeding, behavior, activities , warning, violent, threats, possible, ehrlich, visual, include, chases, copyright, escalate, ineffe ctive, announcements, beautiful, prominent, potential, intruders, exclude, intended, assumed, dobkin , combat |
stanford.edu - rank der domain 1188 (501 in US)
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| Vocal Dialects |
| 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. |
| Vocal Dialects |
| Vocal Dialects |
| dialects, dialect, populations, region, genetic, crowned, between, geographic, species, females, int roductory, significance, within, different, demonstrated, separated, habitats, female, learning, res ponsive, promote, breeding, studies, sparrows, learned, california, territories, sparrow, followed, rufous, dialects, variation, states, simply, development, functions, factors, genetic, distant, copy right, several, hybridization, interpreted, copying, northern, straightforward, attributable, additi onal, assumption, results, rarely |
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| Vocal Copying |
| Vocal Copying |
| http://www.stanford.edu/group/stanfordbirds/text/essays/Vocal_Copying.html |
| Article describing how birds learn their songs from adult tutors and may incorporate sounds from oth er species into their repertoire. |
| Vocal Copying |
| Vocal Copying |
| species, repertoire, sounds, mimicry, vocalizations, selection, copied, generally, examples, charact eristic, diverse, serves, incorporate, detect, sexual, territorial, copying, singer, belong, expecte d, unlikely, surrounding, majority, diversity, environment, acoustic, rendition, incorporated, answe r, sometimes, barking, whistling, screeching, nonavian, anyone, machinery, increasing, fooled, favor ed, stimulate, biological, dialects, functions, territoriality, implicit, deceit, termed, appropriat ion, eliminate, connotation, sexual |
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| Vocal Functions |
| Vocal Functions |
| http://www.stanford.edu/group/stanfordbirds/text/essays/Vocal_Functions.html |
| Songs identify the species of the singing bird. The territorial song of males serves the dual purpos e of territorial proclamation directed at other males and of mate attraction directed toward females . |
| Vocal Functions |
| Vocal Functions |
| species, repertoires, between, female, females, repertoire, neighbors, ability, territory, sparrows, compared, singer, recognition, territorial, features, example, length, identify, vocalizations, str angers, functions, complexity, increase, songbirds, established, rather, learned, generally, singing , exposed, thrasher, referred, somewhat, canaries, discriminate, without, reproductive, distinguish, members, breeding, location, functions, groups, directed, addition, following, identified, recogniz e, important, within, elements |
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| Sexual Selection |
| 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 territor ies, but there is little evidence that females preferentially select males with different degrees of ornamentation. |
| Sexual Selection |
| Sexual Selection |
| selection, females, sexual, individuals, species, female, choose, natural, territories, population, characteristics, differences, tailed, because, prefer, shortened, choice, required, number, territor y, display, evidence, second, widowbirds, inches, mating, feathers, selection, occurs, sexual, subje cted, polymorphic, intermediate, latter, phases, phalaropes, including, lengthened, controls, captur e, ornamentation, polyandrous, secondary, gluing, result, studies, evolutionary, widowbird, territor ial, breeders, another |
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| Polygyny |
| 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. |
| Polygyny |
| Polygyny |
| female, territory, territories, quality, polygyny, resources, superior, females, number, polygyny, o ffspring, buntings, chance, females, already, availability, choose, related, presumably, territorial , leaving, weavers, second, little, reproductive, relatively, difference, between, better, smaller, therefore, holding, inferior, produces, reproduction, winged, dickcissels, benefit, indigo, increase d, headed, blackbirds, studies, yellow, indicator, sometimes, washington, vegetation, seattle, emerg ent, amount |
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| Parental Care |
| 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 whic h involves feeding, training and protection from predators. |
| Parental Care |
| Parental Care |
| parents, species, offspring, feeding, adults, female, precocial, megapodes, parental, chicks, season , however, altricial, usually, during, predators, between, gaping, breeding, regurgitate, insects, s urvive, evolution, themselves, factors, individual, rearing, helpless, passerines, inside, receive, incubation, extended, mounds, snakes, vegetation, opening, conflict, others, parental, reptiles, eli cited, school, northern, chunks, instinct, strong, behavior, destroyed, observations, attention |
stanford.edu - rank der domain 1188 (501 in US)
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| Creches |
| Creches |
| http://www.stanford.edu/group/stanfordbirds/text/essays/Creches.html |
| Article describing how some birds adopt the strategy of grouping their young, leaving them with a gu ardian while both parents go off to forage. |
| Creches |
| Creches |
| adults, creche, chicks, creching, parents, guarding, number, altruistic, behavior, catfish, offsprin g, however, related, african, reared, others, supervision, ostriches, creches, species, guardians, o ccurs, fledglings, herding, opportunity, gather, reminiscent, gathers, school, little, cichlids, fis hes, cichlid, compete, dominant, broods, occasionally, nonbreeding, predict, colonial, nesters, copy right, recognition, parent, parental, dobkin, darryl, ehrlich, whether, discovered, predators |
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| Incubation: Heating the Egg |
| Incubation: Heating 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 t heir webbed feet, and the megapodes of Australia bury them in a mound of decaying vegetation. |
| Incubation: Heating Egg |
| Incubation: Heating Egg |
| temperature, degrees, incubation, minutes, temperatures, incubation, feathers, regulate, nesting, he lping, usually, attentiveness, incubating, length, sensitive, normal, heating, before, patches, embr yo, incubate, periods, averaging, without, parent, freezing, successfully, interrupted, particularly , started, mallard, harmful, continuously, tightness, instance, varying, regulated, instead, respons e, changes, environment, female, apparently, presumably, turning, darryl, prevent, evenly, mallards, american, redstarts |
stanford.edu - rank der domain 1188 (501 in US)
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| Bird Milk |
| 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. |
| Bird Milk |
| Bird Milk crop milk |
| chicks, protein, pigeons, contains, female, pigeon, squabs, feeding, different, months, glands, anta rctic, supplement, flamingos, apparatus, secretions, esophagus, produce, lining, special, mammals, d obkin, secreted, hatches, returned, ehrlich, fasting, darryl, develops, incubates, foraging, single, circumstances, penguin, employ, abdominal, emperor, covered, winter, consumption, during, developme nt, specialized, liquid, material, penguins, favored, little, animal, barren, breeding |
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| Urban Birds |
| 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 e cosystems of cities. |
| Urban Birds |
| Urban Birds |
| example, pigeons, people, cities, populations, number, artificial, feeding, around, different, forag ing, become, natural, species, reduced, population, schedule, however, behavior, support, peregrines , easier, observe, parking, sparrows, country, relatively, dinosaurs, america, predators, feeding, f eathered, falcons, fluctuating, hierarchies, dialects, population, dynamics, little, aspects, commen sal, habitat, selection, neighborhoods, resources, evolve, eventually, helping, starlings, european, grackles |
stanford.edu - rank der domain 1188 (501 in US)
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| Beak |
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| http://www.ipedia.net/information/Beak |
| Article describing the anatomy of this distinctive feature of birds which, in addition to eating, ca n be used for grooming, manipulating objects, killing prey, probing for food, courtship, and feeding the young. |
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| Birdcall synthesis |
| Birdcall synthesis |
| http://www.obiwannabe.co.uk/tutorials/html/tutorial_birds.html |
| Article describing how birds use their syrinx, throat and beak to make a wide range of tones without the sophisticated muscle structure possessed by humans. |
| Page contains sound design tutorials in PureData |
| synthesis birds puredata |
| amplitude, frequency, syrinx, signal, sounds, parameter, muscles, control, modulation, envelope, par ameters, trachea, volume, pressure, interface, possible, tympanic, throat, because, positive, becaus e, function, modulator, oscillator, having, oscillators, constant, instead, things, resonant, syrinx , around, modulates, cavity, membrane, number, animal, synthesis, slightly, between, filter, entranc e, modulate, resonance, backwards, preset, little, attack, moving, envelopes, oscines |
| (SLD : obiwannabe.co.uk) |
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| The Normal Moulting Process in Birds |
| Moulting |
| http://www.parrotpassionsuk.com/Advice/Moulting.htm |
| Talk given by Avian Vet A. K. Jones to a conference of the Association of Avian Veterinarians in Aug ust 1998. |
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| feathers, feather, plumage, species, harrison, medicine, growth, document, philadelphia, replacement , process, normal, breeding, moulting, surgery, dorrestein, replaced, function, application, saunder s, colour, altman, dietary, quills, flight, principles, barbules, include, protein, contour, preenin g, period, aviary, picking, become, waterproofing, damaged, disease, factors, follicle, affected, im portant, plumes, mature, variety, nutritional, structure, ritchie, several, diseases, petrak |
| (SLD : parrotpassionsuk.com) |
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| Teachers' Domain: Bird Beak Gallery |
| 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. |
| This collection of images of 10 different birds illustrates the diversity of bird beaks. |
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| teachers, domain, science, resource, standards, resources, standards, document, resource, reviews, t rackpageview, correlations, benchmarktracker, continue, anchor, questions, background, review, downl oad, discussion, engineering, organization, change, password, technology, animals, insects, plants, report, living, grades, filetypes, function, rating, address, structure, animal, indexof, function, systems, characteristics, initdata, flycatcher, collection, overalltracker, specialized, particular, reviewmanager, gettracker, acquired, pagetracker |
teachersdomain.org - rank der domain 249689 (97944 in US)
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| The Atlas of Bird Migration |
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| http://www.brownreference.com/php/PDFS/AN_Title_Information/457---Sample_Spreads.pdf |
| Comprehensive article on the great challenge faced by long distance migrants which have to find thei r way to winter quarters and return to their breeding grounds in the spring. |
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| (SLD : brownreference.com) |
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| EcoBirds Behaviour |
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| 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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ecoport.org - rank der domain 991909 (415150 in US)
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| Sense of Direction |
| Princeton - Weekly Bulletin 05/03/04 - Biologist tracks down source of birds' reliable navigational system |
| http://www.princeton.edu/pr/pwb/04/0503/1b.shtml |
| Article from the Princeton Weekly Bulletin outlining how Biologist Martin Wikelski is helping to set tle the long-standing debate over how migratory birds manage to navigate in darkness and bad weather . |
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| wikelski, magnetic, princeton, direction, bulletin, navigational, compass, migratory, artificial, co chran, system, tracked, biologist, animals, university, species, scientists, swainson, communication s, during, office, researchers, navigate, reliable, source, people, really, flights, before, thrushe s, tracks, writers, steven, exposed, lovett, experiments, martin, weather, different, significantly, mahlon, similar, results, recognize, maintain, orientation, throughout, followed, location, transmi tters, hundreds |
princeton.edu - rank der domain 6633 (2477 in US)
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| When and How do Birds Migrate |
| The Earthlife Web - 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. |
| Bird Migration 2, When do birds migrate and How do they know where they are going |
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| migrate, direction, different, breeding, travel, migrating, female, species, average, migration, mig ratory, height, overwinter, population, distances, mallards, flight, mountains, migrants, internal, autumn, spring, weather, showed, ground, experiments, feeding, stimulus, conditions, hormonal, invol ving, geographical, however, pagetracker, navigate, migrate, during, earthlife, heights, distance, a ppear, europe, routes, flyways, overflow, golden, scroll, certain, overwintering, another, gajshost |
earthlife.net - rank der domain 755707 (306562 in US)
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| Chicken Embryo |
| Chicken embryo |
| http://www.microscopy-uk.org.uk/mag/artnov04macro/mlchicken.html |
| A number of fine photographs of the development of a chick inside the egg. |
| Guidelines on photographing during development. |
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| embryo, chicken, pushing, attempts, through, lacked, ability, chicken, document, without, incubation , specimens, received, embryology, educational, staple, developmental, embryo, chicken, gallus, gall us, biology, present, understanding, availability, similarities, mammalian |
microscopy-uk.org.uk - rank der domain 315802 (124791 in US)
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| The Making of an Egg |
| The Making of an Egg, VME-21-04 |
| http://ohioline.osu.edu/vme-fact/0021.html |
| Describes the development of the egg of a bird from the release of a mature ovum to the completed eg g with shell being laid. |
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| extension, morishita, spiegle, laboratory, production, disease, investigation, through, membranes, b order, majority, provides, earlobe, riboflavin, approximately, minerals, nutrients, source, availabl e, protein, complete, spends, making, albumen, infundibulum, passes, reproductive, university, medic ine, veterinary, whereas, vagina, developing, causing, uterus, between, result, cooling, inflate, ca lcium, colored, usually, interesting, secreted, forming, conducted, associate, president, status, ve teran, sexual |
osu.edu - rank der domain 5008 (1869 in US)
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| Power Napping in Pigeons |
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| http://www.orn.mpg.de/aktuelles/presse/tauben_en.pdf |
| Max Planck scientists find evidence that pigeons prevented from taking naps in the afternoon sleep m ore intensely at night. |
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mpg.de - rank der domain 18430 (925 in DE)
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| ABCD: Avian Brain Circuitry Database |
| 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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| nucleus, lateralis, medialis, tectum, lamina, opticum, neostriatum, ventralis, dorsalis, thalami, an terior, reticularis, nucleus, magnocellularis, dorsolateralis, posterior, archistriatum, hypothalami , mesencephali, pallium, preopticus, basalis, superior, hippocampus, centralis, intermedium, dorsale , ventrale, optici, pontis, mediale, stratum, dorsal, hyperstriatum, lentiformis, nuclei, vestibular is, paleostriatum, frontale, 11977120, parabrachialis, medullae, caudalis, rostralis, thalamus, late ral, dorsomedialis, pretectalis, caudale, parolfactorius, medial |
| (SLD : behav.org) |
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| The Mystery of Migration |
| the mystery of bird migration: why and how? |
| http://www.naturia.per.sg/buloh/birds/migration.htm |
| Article that tries to answer the question of how and why birds migrate. |
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| migrate, migration, migrating, details, migration, summer, winter, breeding, wintering, altitude, ar ctic, staging, usually, grounds, americas, ground, northern, routes, mountain, wetlands, threats, fl edge, distances, follow, africa, excellent, patterns, during, southern, affects, distance, flyway, s imply, reasons, journey, addition, permanent, reserves, aspect, because, explanation, nature, plants , sungei, sources, habitat, species, compass, destruction, points, position |
per.sg - rank der domain 305882 (919 in SG)
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| Bird Banding Laboratory |
| USGS Patuxent Wildlife Research Center Bird Banding Laboratory |
| http://www.pwrc.usgs.gov/bbl/ |
| Based at the USGS Patuxent Wildlife Research Center, issues permits to researchers in the United Sta tes who place uniquely numbered bands (rings) on birds' legs. Site features the history of banding a nd reporting of bird band observations. |
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| banding, background, wildlife, report, contact, search, service, department, interior, canadian, lab oratory, banding, repeat, respective, policies, similar, offices, functions, jointly, survival, beha vior, movement, studying, universal, indispensable, technique, united, states, administered, america n, program, program, geological, survey, modified, notices, policies, coordination, marked, formats, reporting, accessibility, privacy, information, marcada, banding, program, american, permit, applic ation, history |
usgs.gov - rank der domain 2085 (834 in US)
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| A Tale of Two Boobies |
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| http://www.pugetsound.edu/x13725.xml |
| Biological examination and dissection at the Slater Museum of a booby that strayed to the Pacific No rthwest. |
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pugetsound.edu - rank der domain 284913 (112231 in US)
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| Feathers |
| feathers |
| http://www.nurseminerva.co.uk/adapt/feathers.htm |
| Illustrated article describing how feathers may have evolved and how they develop from a cylindrical feather follicles. |
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| feathers, feather, filaments, structures, present, dinosaur, fossils, branched, evolution, nature, o rigin, flight, increasing, sinornithosaurus, joined, structure, developing, theropod, filamentous, f ollicle, diagram, papilla, filament, becomes, cylindrical, central, larger, smaller, norell, referen ces, precursor, afterfeather, keratin, archaeopteryx, similar, conical, covered, development, feathe rs, complex, develop, characterised, distinctive, feature, follicles, integumentary, ruffling, integ umental, branched, evolution, stages |
| (SLD : nurseminerva.co.uk) |
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| BirdMinds: Exploring Bird Intelligence |
| BirdMinds - Exploring Bird Intelligence |
| http://www.birdminds.com |
| Examples of avian intelligence are reviewed for many different bird species, based upon scientific a nd anecdotal evidence. |
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| birdminds, pelican, watching, search, another, gajshost, document, location, google, exploring, inte lligence, pagetracker, import, parrot, language, scratch, branding, inside, custom, displayed, stori es, interested, favorites, quicker, eyesight, reflexes, humans, better, courtship, longer, intellect , dances, feathers, critically, journal, members, mediazone, library, anyone, member, become, profil e, feedback, discussion, comment, intelligence, binoculars, recent, endangered, addition, zapata |
| (SLD : birdminds.com) |
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| Ornithological Worldwide Literature |
| Ornithological Worldwide Literature |
| http://www.birdlit.org/OWL/ |
| OWL is a compilation of citations and abstracts from worldwide publications concerning the science o f ornithology. |
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| Robin McCleery, EGI, ornithology |
| database, literature, ornithological, literature, serial, domestic, publications, ornithology, gajsh ost, document, pagetracker, ithaca, ornithology, ornithologists, cornell, recent, abstracts, search, worldwide, worldwide, citations, ranch535, managerkenneth, valley, abstracting, sheppard, content, 96056usaon, project, roadmcarthur, little, british, australia, hosted, instructions, effort, between , american, holdings, suggestions, records, comments, sapsucker, javascript, welcome, analytics, scr ipt, trackpageview, 381560, gettracker, google |
| (SLD : birdlit.org) |
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| The Avian Embryo |
| The Avian Embryo - Poultryhelp.com |
| http://www.poultryhelp.com/avianembryo.html |
| Article describing the development of the embryo and how to observe and exhibit it while it is alive and functioning or as a preserved specimen. |
| This publication describes how to observe and exhibit an avian embryo while it is alive and still fu nctioning or as a preserved specimen. |
| Avian embryo, chick, egg |
| embryo, incubator, hatching, incubation, before, should, development, humidity, oviduct, chicks, tem perature, membranes, through, within, incubators, frac12, middot, position, membrane, embryos, embry onic, begins, beginning, formed, reproductive, albumen, solution, between, portion, heating, system, during, female, fertile, thermometer, proper, growth, cavity, develop, exhibit, incubated, hatching , poultry, window, switch, bottom, provide, called, infundibulum, section, frac14 |
poultryhelp.com - rank der domain 966454 (396620 in US)
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