I too have a farm that backs up to the woods and I am always mindful what comes through...at night we have "Thumper", a little cotton tail who comes each evening at dusk to enjoy the green clover in my front yard. We have black bears, foxes, raccoons, skunks, squirrels, possums, deer, etc. I have always tried to be mindful and live and let live until two weeks ago.
How would you feel, becoming very excited when your husband says to go ahead and pick out 9 three day old Amerauana baby chicks, you bring them home, nurture them, give them names, teach them what is great treats, they sit on your hand, your lap, let you cuddle with them, you raise them till they are of age to go outside then begin the transition from the giant dog crate to the new coop inside the smaller enclosure that is across from the big chickens coop, they follow you around, talk to you, come running when you call, and one morning you come out and find one of them missing? You inspect the small enclosure, find feathers all over the place, note that there had been a scuffle, the other pullets scared to death to come out or near you, all piled up at the back of their coop? You keep looking, find blood drops on the brace poles of the big yard and go out and look, you find her in the clearing torn apart? A leg here, her little body ripped wide open, her entrails hanging out, feathers plucked and scattered in the wind, another leg ripped off? Then it happens AGAIN the next morning and that night, the 6 remaining pullets are so afraid to go back into their coop they all take their chances with the adult hens and you find two of the 6 pullets cuddled up and under your roo's wings?
I have fortified my coop as much as I possibly can without breaking the bank. Did I catch the coon that we think did this? Absolutely, and we caught its mate and they were killed with one quick shot to the head. I REFUSE to allow the wild life to come threaten my chickens that have come to depend on me for their health and well being. I also have 3 neighbors who take "pity" on the poor wildlife and feed every species around!! They are on notice, it threatens my animals it won't do it a 2nd time, and the reason they are not so afraid of humans is because of them and their tree hugging granola eating bleeding heat. It not only hurts me but my animals as well.
If your going to kill a wild animal, do so quickly and efficiently. Drowning takes minutes and that is a cruel way to go. If you can't properly kill an animal you trap and perceive as a threat, then don't trap it if you can't do the right thing.