Here is the video I took on Sunday when we went to see the humming birds being banded. We are bundled up because it was really cold, about 30-32 and was snowing and raining. It was miserable weather but the hummingbirds still came. You can see an article on this process here . The bands that they use are really small and look like crimp beads used for jewelry making. After banding and recording information and feeding, they place them on your hand. Sometimes they stay on your hand a long time other times they don't. You can feel their hearts beating. It is a pretty cool thing to experience.