Hummingbirds are among the smallest of all birds, most measuring 3 – 5 inches long and weighing about as much as three almonds! Their brains make up 4.2% of their body weight – which is much more than other birds. Hummingbirds can flap their wings up to 100 times a second and are the only birds that can sustain hovering, for minutes if necessary. They do this by rotating their wings in a figure 8 motion and hover in mid-air to drink nectar from flowers. They are extremely speedy – a hummingbird’s maximum forward flight speed is 30 miles/hour and they can reach up to 60 miles/hour in a dive!