They breed with red wolves, thereby causing impurities in the red wolf line. This is an especially disturbing trend due to the very low numbers of red wolves in the wild. At certain times of the day, or when the pack becomes separated, coyotes make sounds to let other members of the pack know their locations. 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.