Coyote casing the chicken yard

Saw a coyote about 10 feet from the chicken yard this morning before work. Guineas, rooster, and the crows that live in the nearby trees were flipping out and the hens were running for the coop. By the time I grabbed my rifle and loaded it, coyote was gone. Looks like we'll be putting up game cams and watching closely in the mornings. Hopefully we'll get him before he gets any of our birds (or Gus, who isn't a huge dog). That coyote was HUGE. Biggest coyote I've ever seen.