They are the fastest flying bird.
Ruby-throated hummingbirds have been speed-checked in a wind tunnel flying up to 27 m.p.h!
a humming bird can fly 27 miles per hour
Hummingbirds can beat their wings up to 80 times a second during normal flight and up to 200 times per second during a courtship dive.
A hummingbird's heart can beat up to 1360 times every minute.