We have a coyote marauding the neighborhood- seen by several people who know what they're looking at. Arrogant bast*rd took a dump on the back deck. My question is what predator call would be workable for a newbie to coyotes (me) to use for a (probably) one time use? If possible, I would like to try for a less than 50 yard head shot with a .22 target rifle and match ammo ( for quiet reasons- this is a Maryland suburb after all). Ideally I would unhinge him with the AR-15 but I don't wish to incur flashing blue lights in the driveway. Thoughts? Suggestions?

"You can lead a man to logic, but you cannot make him think." Joe Harz
"Always certain, often right." Keith McCafferty