Everyone knows that hummingbirds are the smallest birds in the world!  
These enchanting birds are found in deserts, mountains, and plains, but most are found in the tropical rain forests. Their name refers to the humming sound made by their tiny beating wings.
They are known for their ability to hover in mid-air by rapidly flapping their wings, 15–80 times per second!!!

There are more than 300 kinds of hummingbirds. Hummingbirds are called “nectivores” because about 90 percent of their diet is nectar from flowers)
The most interesting fact is that inspite of hummingbirds are small in size, they have large appetites. Hummingbirds consume between 3.14 and 7.6 calories a day. That may not seem like much, but if humans (who may eat 3,500 calories a day) had the metabolism of a hummingbird, they would have to consume approximately 155,000 calories a day. That’s about 77 times as much as most humans eat!!!

But inspite if variety of species, Hummingbirds are found only in the Americas. But Hummingbirds sometimes fly into garages and become trapped. It is widely believed that this is because they mistake the hanging (usually red-color) door-release handle for a flower, although hummingbirds can also get trapped in enclosures that do not contain anything red.

 Once inside, they may be unable to escape because their natural instinct when threatened or trapped is to fly upward. This is a life-threatening situation for hummingbirds, as they can become exhausted and die in a relatively short period of time, possibly as little as an hour.
So be careful, please…