Concept in Definition ABC

A bird it's a vertebrate animal whose main characteristics are: warm blood, breathing pulmonary, body covered by feathers, horny beak without teeth and two wings arranged on the side of its body that are normally used for flight. They also have two hind limbs that allow them to walk, jump, and stand.

Regarding its size, it can range between 6.5 cm. and up to 2.74 meters.

Its differential characteristic at the time of reproduction the thing is lay eggs, which will be incubated until the break occurs and with it the birth.

The origin of birds dates back to approximately one hundred and fifty-two hundred million years ago and they originated from the bipedal carnivorous dinosaurs of the Jurassic period; after a violent radiation the evolution that we know today and that is how the ten thousand species of today originated.

The habitat of birds is really varied, since They inhabit almost all the biomes that our planet earth has and likewise in all waters, seas, oceans, among others.

Another peculiarity that adds to the several that birds already possess are the behaviors that most of the species present, among which are: the aforementioned reproduction through laying of eggs; the migration towards different areas at certain times of the year; association in groups; the communication Among them, it can be from visual signals, through calls and even original and distinctive songs of each specimen; the developed intelligence; and the transfer of knowledge to subsequent generations.

Regarding the interaction with humans, birds, since their appearance, have had a close relationship with individuals, either as the basis of their economy or his feedingSuch is the case with poultry, and as an accompaniment to people, in this case, parrots are undoubtedly distinguished as the quintessential pet of many people around the world. They have also been used at the request of the manufacturing of products (stuffed for armchairs and pillows) and to decorate some objects.

And on the other hand, the word bird is usually used in common language to refer to that individual who settles for a short period of time somewhere. Juan is a bird of passage in the town, he plans to return to his life in the city.