The birds

 The birds are almost the only vertebrates that dominate the air way and all his anatomical this structure adapted to the flight. The transformation of the previous extremities in wings is the characteristic fgeneral, except in some species that have limited or turned in fins.They come from the reptiles but they have evolved up to obtaining a new characteristic, the homeotermia, or aptitude to keep the corporal temperature constant independently of the conditions of the environment. As for his nervous system, this one also many evolved mas, which it reflects in a complex conduct and a learning capacity with regard to the reptiles very top. The flight is another characteristic that determines in a decisive way his physiology and his anatomy.

The bee-eater feeds of insects that he hunts in flight, constructs his nests in the bank of the rivers or sandy walls.