We are lucky here not to have those critters. My lab is great with protecting them as well. He went running out of the dog door the other night to go check on them. It woke me up too. Turned out to be the wind knocking over the empty trash cans. The chickens are locked up in the coop at night but at least I know he is on top of it. The wing clipping works well for us. I even do it for my Quail just in case they get out when I have to open the hutch. I had a mister system but it didn't work out well because the water is too **** hard here so it just clogs up. I am lucky enough to be retired so I am able to be home most days when it is really hot out. I go out and spray the straw bed a little bit so they can lay in it and cool off. I also have a shallow tray with a few bricks in it. I fill the tray with water to the level of the bricks. The bricks become saturated with water and are cool to the touch because of evaporation. The girls love to just stand on the bricks and get cool. Even on the hottest of days at 115 degrees they don't even so much as hold their wings out. It works really well....
I bought one of those plastic baby pools for mine and also tried a shallow box, but all mine will do is take turns to stand in the bird bath. Lol