If you don't care about truly thinning the numbers, then some of the basic things I would recommend would be to get away from any structure, set-up in thick cover with minimal access points, put that canal to your downwind side so they can't scent you, call very minimally since it is a small area and you want them hunting for the source of the sound, use a decoy with very little movement (a feather on a stake).
If you want to really lay the hurt to them, wait until the middle of March thru middle of April. Howl at sunrise and sunset to locate the coyotes. They will be denning and in a set spot. Locate the den. Shoot all females. Check to see if they have dropped their pups. If no, you are done. If yes, split open the fallopian tubes and count the nubs. The nubs are where the fetus has attached to the uteran wall. Count the nubs. That is how many pups she has had. Get a shovel and start digging, have a shotgun ready if legal. Shoot all pups until you have all that she dropped.