Effective coyote repellent methods include noisemakers, pepper sprays, bright lighting and motion sensors, as well as the installation of exterior fencing. Coyotes typically avoid human contact but are still commonly found in many urban and suburban areas. Hazing tools such as spraying coyotes with water or using small rocks and sticks as projectiles may effectively repel coyotes and discourage them from remaining in a particular area.
A brightly lit environment can discourage coyotes from encroaching on pets and livestock. Motion-activated lighting and sprinkler systems can also be effective at repelling coyotes but may not provide adequate discouragement for animals that are hungry enough. Chain-link fences can also keep coyotes away from areas and environments, provided the homeowner installs them properly. Underground fences keep coyotes from digging past the barrier and fences topped with an outward overhang or barb wire make fences more difficult to climb.
Strong odors can also repel coyotes and wolf urine, moth balls or rags soaked in ammonia can all discourage encroachment when positioned around a yard or exterior environment. Odor-based deterrents may also mask the smell of food. The best option is to place them in trash cans and around other areas where wastes or food might serve to attract coyotes. It is important to reapply these deterrents continually, and they may become quite expensive to maintain.