Probably going to stir up the pot here. As far as I know the coni can't be set within so many yards (miles)? from an inhabited building. I read it a few years back, but I use them on very remote ranches where I don;t have to worry about it. Here I go. Most cities have ordinances or leash laws meaning it is against the law for you to have your dog or cat running free tresspassing and chitting on someone else's private property. And yes my city has one for cats as well. My neighbors disregard this and let their fluffies run free, and they are continually killing the wild birds and rabbits that I feed and stinking up my flower beds for me to dig in, in my backyard which happens to be my private property. Still waiting on the day fluffy is pounded for trespassing. Anyway my opionion is if your cat is chitting in my backyard on my private property, that has a wooden fence around it,because YOU chose to disregard the law, then your fluffy is fair game and a coni is the best way to get fluffy on the next dumpster truck for a one way ride to the dump!! But do be careful with the coni they are awesome traps and will most likely kill any animal that puts it's head into one. I especially like the bucket set or a cubby set. Either one works on just about any animal.
A trick for the animals you mentioned that not many people use because its too cruel to an animal that you are trying to kill anyway go figure, is to get a large treble hook and hang it for a low tree limb that is flexible, lower for yotes a little higher for cats. Bait it with a piece of meat like rabbit, be sure to use a steel cable, and they will jump up to get at the meat and hook themselves either by the mouth or paw I have found. MAny a yote and cat that couldn't be trapped has fallen for this set for me. /ubbthreads/images/graemlins/grinning-smiley-003.gif