الوصف
There are a lot of interesting facts about hummingbirds for kids. They're tiny birds that whiz through the air and are often spotted at nectar feeders throughout the United States. Hummingbirds are also the only migratory birds that don't migrate in flocks. They'll fly up to 500 miles on their own. While they're small, hummingbirds are highly energetic and can run up to 50 km per day.Hummingbirds have a very high metabolic rate and incredible appetites.