The hummingbird is the smallest bird and also the smallest of all animals that have a backbone.
They have no sense of smell
Because the hummingbird can rotate its wings in a circle, they are the only bird that can fly forwards, backwards, up, down ,sideways and hover in mid air.
|to conserve energy while they sleep or when food is scarce, they can go into a hibernation-like state (torpor) where their metabolic rate is slowed to !/15th of its normal rate.|
During migration, some hummingbirds make a non-stop 500 mile flight over the Gulf of Mexico.
During courtship dives they can reach speeds up to 60 miles per hour and can average speeds of 20 to 30 miles per hour.
They are the second largest family of birds with 343 species.
Their wings can beat their wings up to 80 times a second during normal flight and up to 200 times per second during a courtship dive.
The hummingbird has a heart rate that can reach up to 1,260 beats per minute.
Percentage wise, the hummingbird has the largest brain of all birds (4.2% of its total body weight).
They have very weak feet and use them mainly just for perching.