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Birds.....

Chap. 22 Terms

QuestionAnswer
Why can birds fly? hollow bones that contain air
air sacs – thin walled sacs in respiratory tract of birds that store air & provide buoyancy for flight
syrinx voice organ of birds
keel sternum or breastbone of birds
pygostyle where tail feathers attach
choana the cleft in the hard palate of birds
cere thickened skin at the base of the external nares of birds
coverts small feathers that cover the bases of larger feathers on the body - named based on their location
cloaca common passage for fecal, urinary and reproductive systems
coprodeum rectal opening into the cloaca
crop – esophageal enlargement that stores, moistens, and softens food
proventriculus elongated glandular stomach of birds
ventriculus muscular stomach of birds - also called the gizzard
candling process of shining a light through an egg to check embryo development
chalaza ropelike structure that holds the yolk to the center of the egg
Debeaking removing about ½ of the upper beak and a small portion of the lower beak to prevent fighting in poultry.
Beak trimming trimming the tip of the beak to keep it properly aligned
Clipping trimming wings to prevent flight
Cuttlebone shell of a cuttlefish that is typically provided in the cage for a bird to use to wear down its beak
Feather picking undesirable behavior in which birds remove their own feathers; due to stress or disease
Fledgling young bird that has recently acquired flight feathers
Hand raised refers to a bird that has been raised by humans
Psittacine group of parrotlike birds: parrots/macaws/cockatiels/cockatoos, etc
Ratites Class of large flightless birds that are raised as livestock; used for their meat & hides
Examples of ratites: Ostriches – Emus - Rheas
Created by: mountida