January means mating season in the coyote fields with males and females answering the calls. Territories are being set and fought for in the coyote hunting world so challenge howls with female calls become go to calls. Female whimpers and whines are best to bring in the males looking for a girlfriend. Female lone howls are great also as they can bring in territorial females or lonely males. Listen for answering howls and barks after your lone howls. Bark or challenge back depending on their response. Mating calls can be used as a last resort but be ready as coyotes will come in fast.