Birds

The definition of a bird is a warm blooded member of the Aves class, which has feathers, a beak, no teeth, wings and bears young in eggs.Birds are a group of warm-blooded vertebrates constituting the class Aves, characterized by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.Birds were able to become flying machines largely through the evolutionary gifts of feathers, powerful wings, hollow bones, warm blood, a remarkable respiratory system, and a large, strong heart. These adaptations all boil down to the two prime requirements for any flying machine: high power and low weight.There are four main birds type for this self assessment test:
Dove – peaceful and friendly.
Owl – wise and logical.
Peacock – showy and optimistic.
Eagle – bold and decisive.As with other native organisms, birds help maintain sustainable population levels of their prey and predator species and, after death, provide food for scavengers and decomposers. Many birds are important in plant reproduction through their services as pollinators or seed dispersersBirds are obviously important members of many ecosystems. ... Birds play a vital role in keeping this balance of nature. In addition to being important parts of food webs, birds play other roles within ecosystems. Birds eat insectsEconomic Importance. Many species are of economic importance, mostly as sources of food acquired through hunting or farming. Some species, particularly songbirds and parrots, are popular as pets. Other uses include the harvesting of guano (droppings) for use as a fertilizer.