One time when I was a kid some guy told me that Hummingbirds have very "fast moving hearts", and because of this they have to flap their wings ever 6 seconds. He said that they would die if they didn't flap their wings every 6 seconds. My whole life I've been regurgitating that little "fact". Most people have found it to be very interesting.
The other day I saw a hummingbird stand on a branch and not flap it's wings for about 22 seconds. I was crushed. I had been living a lie. Whoever told me that was an idiot.