Many people confuse hummingbirds with certain varieties of the sphinx moth. Sphinx moths found in Canada belong to the Hemaris genus. They are heterocera moths, active in the daytime, with a very long proboscis allowing them to reach the nectar at the bottom of the corolla of flowers. Like the hummingbird, they can hover in place. The sound they make when maintaining the same position resembles that produced by hummingbirds, but it's weaker. The most common species in Canada is the Hemaris thysbe, more commonly known as the hummingbird sphinx moth.
Musée de la nature et des sciences de Sherbrooke