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28 Cards in this Set
- Front
- Back
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Ornithology |
Study of Birds |
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Thermoregulation |
high metabolism; need energy to fly |
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Monogamy |
each individual has one mate |
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Altricial |
hatchlings that’s need care 24/7 |
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Crop Milk |
cheesy secretion that young birds feed on until they can eat grain |
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Contour Feathers |
cover and streamline a birds body |
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Precocial |
independent hatchlings |
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Down Feathers |
Soft and no hooks on barbules; used for insulation |
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Archaeopteryx Lithographica |
earliest bird; means “ancient wing carved into stone” |
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Molting |
periodically shredding; replacement of feathers |
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Polygamy |
Each individual has more than one mate |
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Filoplume Feathers |
hair like feathers; used for sensory |
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powder down feathers |
feathers that disintegrate as they grow, releasing powder that aids in water proofing |
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Plumage |
covering of feathers |
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Many birds are ___________ |
insectivores |
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Feathered Dinosaurs |
Evolutionary biology refer to birds as “___________” |
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Which 4 groups of animals conquered the air by the ability to fly? |
-birds -bats -pterosaurs -insects |
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what does preening mean? |
birds rubs their beak or bill over their feathers, keeps the feathers smooth, clean, and in place. |
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Euryphagous (generalists) |
birds who feed on a wide range of food items |
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Stenophagous (specialists) |
only feeding on one type of food |
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Crop |
stretchy organ used to store excess food so the bird can digest it more slowly |
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How many chambers do birds have in their heart ? |
four |
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birds are _______ |
oviparous |
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Crop |
stretchy organ used to store excess food so the bird can digest it more slowly |
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How many chambers do birds have in their heart ? |
four |
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birds are _______ |
oviparous |
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Nitrogenous waste are secreted as ____ ____ rather than urea |
uric acid |
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migration allows birds to avoid _______ ________ |
climate extremes |
