DEFINITIONS AND KEY POINTS FOR OBJECTIVES IN BIRDS
----------------------------
----------------------------
| TERMS |
DEFINITIONS |
| Plumage |
The covering of leathers on a bird is called the plumage. |
| Preening |
Preening keeps the feathers smooth, clean and in place. Preening is done by rubbing the bill over the leathers. |
| Anting |
In this case, the bird picks up ants in the bill and rubs them over the feathers. |
| Iridescence |
The flattening and twisting of barbules causes the diffraction of |
| |
light. It causes iridescence |
| Molting |
The process of shedding and replacement of feathers is called molting. |
| Soaring |
Soaring flight allows sonic birds to remain in air without spending much energy. |
| Gliding |
The wings remain stationary during gliding height and the bird loses altitude |
| Counter current flow |
The opposite floss of blood and air which maximize gas exchange is called counter current flow. |
| Panting |
The remove of heat through rapid breathing is called panting |
| Bird of prey |
The carnivorous birds arc called bird of prey. e.g. Hawks, vultures. |
| Monocular vision |
A vision based on single perception is called monocular vision |
| Binocular vision |
A vision based on double perception is called binocular vision |
| Monogamy |
A single male pairs with a single female |
| Polygyny |
A single male mate with many females |
| Polyandry |
A single female mate with many males |
| Clutch |
The group of eggs laid and chicks produced by a female is called a clutch. |
| Altricial |
The young that are entirely dependent on their parents are called altricial. |
| Preeocial |
Precocial young are alert and lively at hatching. They are covered with down feathers. |
Migrations
|
The periodic round trips of birds between breeding and non‑breeding areas are called migration. |
Similar Articles:
