How cute are these two? The boy did such a great job taking care of the bird. He would go outside 3 times a day to catch flies from his compost bin, crushed and mixed them for the bird. He also helped her learn to catch flies while flying. He says it was a pretty hectic but very rewarding experience. Hummingbirds are amazing. The bee hummingbird is the smallest species and measures 2.25 inches long. The average ruby-throated hummingbird weighs 3 grams. In comparison, a nickel weighs 4.5 grams. A hummingbird’s wings make between 50 and 200 flaps per second depending on the direction of flight and air conditions. An average hummingbird’s heart rate is more than 1,200 beats per minute. At rest, a hummingbird takes an average of 250 breaths per minute.Hummingbirds do not suck nectar through their long bills, they lick it with fringed, forked tongues. A hummingbird can lick 10-15 times per second while feeding.