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34 Cards in this Set
- Front
- Back
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Archaeopteryx |
crowsized bird like reptile |
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Arborealtheory |
flightevolved from gliding from trees |
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Cursorialtheory |
elongatedarms gave heightened leaping ability |
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Dromaeosaur |
fourwinged reptile |
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Wingassisted incline running |
usedto reach elevated refuges in birds that can’t fly |
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Airfoil |
shapeof wings in cross section |
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Alula |
derivedfrom first digit, helps air movements conform to shape of wing |
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Pectoralis |
musclethat pulls wing down |
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Supracoracoideus |
musclethat pulls wing up |
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Elliptical |
highlyslotted short wing found on passerines |
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Highspeed wings |
longwings taper to point found in swallows |
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Highaspect ratio wings |
foundin soaring sea birds |
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Slottedhigh lift wing |
used by predatory birds |
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Gliding |
delayrate of decent by forward movement |
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Soaring |
maintainor increase altitude without flapping |
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Staticsoaring |
usingcurrents of warm air |
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Dynamicsoaring |
using horizontal layering of air currents |
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Thermals |
convection currents due to unequal heating of ground |
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Ratites |
flightlessbirds |
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Carinates |
birdscapable of flight |
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Contourfeather |
coversbody |
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Filoplumesfeather |
veryfine with few barbs at the end |
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Bristlefeather |
stiffshaft and barbs only at base |
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Downfeather |
softfluffy trap air |
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Semi-plume |
fillin between contour and down feathers |
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Quillknobs |
attachmentsite of feathers on bones |
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Pterylae |
tractsof feather growth |
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Uropygialgland |
preengland |
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Syrinx |
soundproduction organ |
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Broodpatch |
area of featherless skin that develops to aid egg incubation |
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Precocial |
eyesopen, covered in down, find own food |
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Semiprecocial |
eyesopen, covered in down fed by parents |
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Semialtricial |
covered with down, incapable of leaving nest |
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Altricial |
bald, eyes closed, fed by parents |
