rustywoman wrote; Here is a picture of my back yard where all these predators hang out (there was a fire going on at the time of the picture)
What a vista! If I was afforded that sort of range I'd have to run down an old Sharps 45-70 and mount it on a tripod.
I hope some variation of `narrow...
The following method might be useful if you have good fields of fire from inside the house (windows/doors) and can setup a temp. `cull run' (narrow rectangle) within a range at which you can be fairly sure to be accurate, even if half-asleep.
The narrow faces of the rectangle should be covered...