The hummingbird’s heart beats more than 1,200 times per minute while flying. At rest, it’s closer to 250 beats per minute, which is still ridiculously fast considering that the human heart beats about 200 times per minute during intense exercise.
I rarely see hummingbirds rest, but a few years ago, I saw one preening itself on a twig during a beautiful summer evening. Luckily, I had my camera with me, and this little guy wasn’t afraid of me at all. The result is my favorite photo I’ve ever taken.