Which bird can fly in reverse direction?

The  hummingbird  is the smallest bird in the world, measuring around less than 5cm. The hummingbird is also the only species of bird that is able to fly backwards. Hummingbirds beat their wings 15-80 times every second  which gives the hummingbird an incredible ability to hover in the air. Hummingbirds have a long, pointed beak which when combined with the hummingbird's extendible tongue allows the hummingbird to gather nectar from deep inside flowers. Many species of hummingbird do not survive their first year of life due to their susceptibility of being harmed. But the individual who survive tend to have an average lifespan of around 4 years.  Wild and domestic cats also prey on the tiny hummingbird, but hummingbirds are known to be a difficult meal to catch for any predators due to their speed and sharp movements particularly in the air. The hummingbirds name is thought to have originated from the noise the hummingbirds wings make when the hummingbird is hovering.