CLASS AVES VOCAB 1.Furcula-fused pair of collarbones aka the wishbone; plays important role in flight by helping stabilize the shoulder joint 2. Feathers-modified.

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Presentation transcript:

CLASS AVES VOCAB 1.Furcula-fused pair of collarbones aka the wishbone; plays important role in flight by helping stabilize the shoulder joint 2. Feathers-modified scales with 2 fx: provides lift for flight & conserves body heat 3.Down feathers-soft, fluffy; cover body of young birds & provide insulating undercoat in adults 4.Contour feathers-give adults their streamlined shape & provide coloration and additional insulation 5. Flight feathers- specialized contour feathers on the wings & tail

6. Follicles-tiny pits in skin from which feathers develop 7. Preening-birds use their beaks to rub their feathers with oil secreted by a preen gland, located at the base of the tail 8. Molting- to shed or regrow feathers periodically 9. Brood patch-thick, featherless patch of skin on the abdomen 10. Precocial young-offspring that can walk, swim, feed themselves as soon as they hatch 11. Altricial young- offspring that are blind, naked, and helpess

12. Migration- seasonal movement of animals from one habitat to another 13. Ornithology-the study of birds 14. Ornithologist-biologists who study birds 15. Nocturnal-active at night 16. Syrinx- structure in which the song of songbirds is produced; located at base of the trachea

17. Crop milk- nutritious milklike fluid secreted by the crop of pigeons and doves to feed their young 18. Metabolism-sum total of all chemical reactions in the body

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