Some great info from website "Hummingbird Journey North"
A hummingbird flaps its wings 75 times per second during flight. Flying burns so much energy that a hummingbird typically eats every 15 minutes! Hummingbirds spend warm months in the areas of North America shaded red. They fly to Central America (areas shaded green) during the cooler months of the year. When hummingbirds migrate, do you think they fly over land and feed on flowers along the way? Or do they fly over open seas, where there's no place to find food or rest? Look at the map, make your prediction, then check out these websites to learn the answer!