Coyotes have a wide range of vocalizations including barks, yips, yelps and growls, but they are most known for their howls. Although they may howl during the day, coyotes are most active at dawn and dusk, and most howling is heard at night.
A small pack of barking, yipping coyotes sounds similar to a group of excited dogs barking in a kennel, and a mournful, howling coyote sounds like a lone wolf. The various sounds are used to communicate within the pack and outside the pack with other animals. Howls are used to round up members of the pack and to warn off other packs.