Depending on the time of year, especially during winter when coyotes are breeding, coyote vocals work when nothing else will. However, on most of my calling stands, the sequence that I’ve had most success with begins with a few subtle coyote howls, pausing for a minute or two, then using prey in distress sounds such as rabbits or rodents. If I don't have any luck after 15 to 20 minutes with those calls, I finish the calling stand by playing a coyote pup in distress sound. The pup sounds can bring coyotes who have responded to the distress sounds, then stalled out of range.