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Birds.....
Chap. 22 Terms
| Question | Answer |
|---|---|
| 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 |
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