I feel you can co-exist with local wildlife, provided you have Coop Knox, as I finally do. Lost more poultry than I care to admit in past years.
One of the threads I read today scared me into setting my trap for coons however. I haven't had trouble since starting with this particular coop, but someone posted a pic of a nice little hole ripped right through some chicken wire and I went out and slaughtered a rooster and baited my trap with his head.
Perhaps the way I am is not exactly co-existing, but in another way it is. I treat the local wildlife as part of my farm. I have eaten many racoons. My brother or father would kill one and give it to me or my husband would kill one that I had trapped and I would clean it. The way I felt is that it was better to eat it than have it die for nothing but the protection of my chickens. Seems like a waste. I did, however, waste the possums. Haven't been able to bring myself to clean one of those.
Also I traded 3 dozen eggs with my brother for a deer roast 2 days ago. I also trade eggs for seafood with my brother-in-law.
It seems like if I can bring down the preditor population down just a bit, then the squirrles and rabbits will make a come back and the chickens will be safer. There is way too much wildlife here for me to make much of a dent in their cycles, but as long as I don't hunt them down to extinction, I feel they will be here for futher generations.
We have some serious preditors here. The scariest I ever saw was a huge black panther.......I think a lot of people don't believe me. I think co-existing can only occur with a well thought out, perfectly (if there is such a thing) made coop.