The Ruby-throated Hummingbird is one of five species of hummingbirds that nest in Canada. It occurs across the southern part of this country from Alberta to Newfoundland.

The hummingbird family is so-named because of the humming sound made by their extremely fast wingbeats. They are capable of rapid forward flight, of remaining stationary in mid-air while feeding at flowers, and even of backward flight for short distances.

Hummingbirds feed on minute insects and flower nectar, which they obtain by means of a long extensile tongue. They are found where flowers are present in gardens, orchards and woodland clearings.

Hummingbirds are the smallest of birds, and because of their size they are often mistaken for large hawk moths, which also feed at flowers. Most Ruby-throated Hummingbirds are 7 to 9 cm (about 2.5 to 3.5 in.) long. Their wingspan is 8 to 11 cm (3 to 4 in.). Females are generally larger than males.