| Did you know that a hummingbird's brain is 4.2% of its body weight, the largest proportion in the bird kingdom?|
Hummingbirds can see ultraviolet light, and can hear very well but have no sense of smell at all.
They are the tiniest birds in the world.
|A hummingbird's heart beats up to 1,260 times per minute ,|
but when in torpor, to conserve energy- it can drop to as little as 50 beats per minute.
Also, their flight muscles are thirty percent of their weight.