When one coyote begins barking, yelping, and then howling, other coyotes in the pack join in. These vocalizations typically end with short, sharp yaps. Coyotes typically create long, meandering trails in areas where they habitually travel. At one time black bears were keen predators of coyotes. However, since the population of black bears has declined, they are no longer a serious threat.
Humans pose the biggest threat to coyotes.
Although many coyotes have been killed by humans in order to protect livestock, their population remains robust. References Special thanks to the National Audubon Society.