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A section in the Vertebrate Study Guide

Are birds endothermic or ectothermic? Endothermic
What characteristics do all birds share? 2 Wings, 2 Legs, A bill or beak
What is the one unique characteristic to all birds? feathers
What do their young develop in before hatching? hard-shelled eggs
What do mother birds do to help nurture & develop their young until birth? sit on them to keep them warm
Describe the bones of bird skeletons. Light & strong skeleton for flying; Hollow bones
What does flight require a great amount of? energy & oxygen
Why are there different wing types?Different purposes. Wing shape & surface area, air speed & angle all combine to provide an upward push for flight. Gliding, Soaring, Rapid Takeoff, Hovering
What are contour feathers? strong, lightweight feathers that give shape and coloring
What are barbs? parallel strands that branch off of the main part of the feather
What do contour feathers help the bird to do? move through air & water; steer & keep in control
What are down feathers? trap and keep warm air next to bird body
Created by: GwendolynetheOC