Bird

Bird is a member of the group of vertebrate animals (vertebrates), which have feathers and wings. The oldest bird fossil discovered in Germany and known as Archaeopteryx.

Birds reproduce by eggs. The eggs of birds, reptiles such as eggs, only more difficult, because the coating of limestone. Maleo Some species of birds such as birds and birds charred, hoarding their eggs in sandy soil mixed with litter, warm sandy beaches, or near a hot spring. Instead of brooding, the birds leave the natural heat of decaying leaves, sun or geothermal incubate the eggs, like most reptiles.

But most of the birds nest and incubate the eggs in the nest with mengeraminya it. Nests may be just a bunch of twigs, grass, or stones, or simply kaisan in sandy soils with a slightly curved so that the eggs are not easily reversed. But there's also the kind of birds that nest in a complex and beautiful, or unique, such as the known types Tempu Manyara, hornbills and namdur swallow.

birds born babies are still generally low, must be heated and fed with food from its parent. In addition to the types of charred birds, where the children live independently in the bird looking for food and protection. Son of charred birds can be executed some time after hatching, although some are already able to fly.

The species of birds in general have a ritual in pairs, respectively. This ritual is a process to identify and attract a partner, usually performed by male birds. Some specific categories, such as peacocks and paradise, the males do a dance to attract females. While the birds mate with attractive males report a half ago her nest Manyara. When the female is ready to continue the construction of nests by the males to be perfect, but when women are not satisfied, it is discarded or abandoned nests.

Bird provided enormous benefits to human life. Many species of birds such as chickens, turkeys, domestic ducks and geese for a long time and are an important source of protein, meat or eggs.

In addition, people also keep the birds for fun and competition. Examples are birds, pigeons, doves, song thrush and other rock. Eagles are often required for the performance and prestige, sports and hunting. many bird species are increasingly rare in nature because people are hunting for commercial purposes.

Apart from the bird population continues to decline due to habitat destruction caused by bird to human activities. Therefore, some of the many species of protected birds, either by law or international regulations of Indonesia. Some nature reserves and national parks are also built to protect the birds