As long as it can, it will keep coming back for more from yours and your neighbors flocks. You may have to eliminate it. Don't worry there will be more moving in to replace it. Since I eliminated the couple of fox that were killing my birds I have seen others around but they haven't messed with...
I have been seeing a fox around here at night lately but as long as it doesn't bother my birds it's safe, but if it does, I'll eliminate. it. Here they roam mostly at night because it's so hot during the daytime.
This might be a coyote because I have been seeing one now and then.
Could have been a coon or any number of predators. One thing you can be sure of is it will be back and is probably lurking looking for an opportunity for another try. If you have a game camera, put it up and then you will know for sure what you are dealing with. I have several cameras up around...