I can try to get a picture of mine, but it's pretty straight forward to describe. It's using T-posts, welded wire to just under 6' tall and buried a few inches at the bottom (from researching, not buried enough). On top of that I have bird netting that goes in diagonally (picture a roof, just made of net) that goes from the top of the welded wire fence and up to a height of about 8'
I realize the bird netting is weak, but it's on there such that if anything were to climb onto it, then it would end up getting tangled up in it pretty quickly.
What I am thinking of doing, is:
1) Move invisible dog fence to enclose the area the chicken coop / run is in.
2) Get something like
this and bury it horizontally coming from the bottom of my existing fence out to about 5' I would use some kind of tie to attach it to my existing fence, maybe going up about 6" or so. Sort of like an L shape with the long piece of the L buried just below the ground and the short piece attached to my existing fence.
3) Put an electric fence, with 3-4 wires at the end of that buried piece of fence.
Along with that once I see how your run is set up, especially if it is fairly predator proof, copy the same type of thing with chicken wire and hardware cloth. Going to be a fairly large project, but if we decide to continue keeping chickens it will be worth while.
We have coyotes here, and I believe bobcats as well. I have seen coyotes a couple times, but never any bobcats though.