Highlight in the structure of the skeleton of a bird features of adaptation of birds to flight.

The adaptation of birds to flight is closely related to their skeletal structure. First of all, you need to highlight their lightness and strength of the skeleton. This is extremely important, since excess weight requires a lot of energy to fly. Strength allows you to overcome difficulties during flight, since there is strong wind resistance on the skeleton. The skeleton has a certain shape. This gives the bird good aerodynamics. Then it is easier for them to cover long distances. Some birds can glide in the air due to the peculiarities of their skeleton.