Hover or flutter flutter (hanging), such as hummingbirds can easily hang in the air, can backslide in front of flowers, quickly fly away, often considered to be the only bird that can fly backwards. Kestrels and kingfishers are also among the birds that hover, but they don't hover backwards the way hummingbirds do. Kestrel falcons use updrafts along the coast to hover in search of prey; Kingfishers hover on the water with a quick flutter of their wings, then dive into the water to catch fish.
Why does a bird fly so fast when its wings are not moving?
The bird's wings did not move, but he flew high and fast, because the bird in flight, he made a rush in advance of the preparation, such as in advance to quickly flap their wings, and then use their most suitable posture to carry out by the power of the body to rush forward, in the middle, he can then carry on the extra force, so that he can fly high and fast