This bird is the fastest bird (also fastest animal in the planet) ,which is in its hunting time/period only.In its hunting time,it goes upwards to the space for a long and in its stoop from a great height,then dives steeply at a speed of over 200mph which is more than that of cheetah,fastest animal in the world.But it doesnot make a place in the top when travelling in level flight so we can't see this bird in the top list of fastest birds even.

 SPINE-TAILED SWIFT

also known as the White-throated Needletail

Speed - 171 kph