There are 15 species of hummingbirds living north of Mexico but only the Ruby-throated Hummingbird can be seen in Lambton County. Only three to three-and-half inches long and weighing about as much as a penny, they can flap their wings more than 50 times per second, producing a humming sound. They can fly forwards, backwards or straight up or down and can hover to feed from flowers. They accomplish all this by tilting their wings in much the same way as helicopter rotor blades are tilted to change direction. (more…)