My Coyote Issue - ASMR.

I had a visit from a small pack of Coyotes last night. I watched them on my cameras for -over 45 minutes before they finally gave up and left. My chickens are safe at night in their coop but I believe the canines in my area are working together to decimate my flock so far they have taken a rooster and 4 hens in the past few weeks and nothing seems to deter them not even my electric fence.