DEFINITIONS AND KEY POINTS FOR OBJECTIVES IN BIRDS
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. |
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