how is it possible for birds to fly through the air at relatively high speed
Air passes over or under the wing as the bird moves forward, or as the wind blows. The air that moves over the top of the wing has further to travel to get across the wing, thus it speeds up. This causes the pressure to drop because the same amount of air is exerting its pressure over a greater area.he tail helps the bird with some lift and speed of flight and also with direction. The bird uses the tail like a ship uses a rudder. It most purpose is that it acts as the ru â¦ dder, steers the bird, and also keeps it balance.