What do the different howls and yips made by a coyote mean?

Howling - Communication with other coyotes in the area. Also, an announcement that "I am here and this is my area."

Yelping - A celebration or criticism within a small group of coyotes. Often heard during play among pups or young animals.

Bark - The scientific name for coyotes means "barking dog," Canis latrans. The bark is thought to be a threat display when a coyote is protecting a den or a kill.

Huffing - is usually used for calling pups without making a great deal of noise.