Chapter 7 Review Flashcards
Plumage
Feathers
The largest flying bird
Andean Condor
Bird bills are made out of
Keratin
The attachment point for the flight muscles on the sternum
keel
Retractable group of feathers
Alula
The most important flight muscle
Pectorals
How many chambers does a bird’s heart have?
4
Storage sac in esophagus to moisten food
Crop
Section of stomach that grinds food.
Gizzard
What vision allows for sight of all surroundings at once?
Monocular
Strong feathers found on the body, wings, and tail. Good for streamlining
Contour
Soft, fluffy feathers close to the skin for insulation
Down
Oil from the preening gland that makes the feathers
waterproof
Replaces old, broken, and missing feathers
Molting
Simple flight, coasts downhill
Gliding
Remains stationary in the air. Hummingbirds
Hover
Built in knowledge that they possess at birth
Instincts