What are the life habits of hummingbirds?

Hummingbird is the smallest bird in the world, about the size of a bee. Hummingbirds are small, but their eyes are big and full of spirits. They are covered with gorgeous feathers, and some of them have a long tail that dances with the wind. The mouth is thin and long, like a tube, which can be inserted into flowers to suck nectar. When they fly to collect nectar, they can make a buzzing beeping sound, so they are called hummingbirds. The smallest hummingbird is only 6 cm long and weighs only about 2 grams. The mouth and tail account for half of the body length. Despite its small size, every hummingbird is a good pilot. They can flap their wings 20~200 times per second and flap their wings horizontally. This operation will produce a general constant buoyancy and be supported on the hummingbird's body. At this point, it only needs to move its tail, and its body can move up and down or even backward flexibly.