One of them has been coming a lot and for about 1 year, he eats our cats food, but he is really skittish. As soon as I step out of the door he is gone. Just recently another cat has been coming around. This one is less skittish, but still won't let me get anywhere near him. It also has not been eating the cat food I put out that I know of, of course he could be if I am not looking :). I have never trapped a cat before and don't even know where to start. I know I can buy or rent a trap, but I don't really want to pay for it. Is there a way to rig a cat carrier into a trap? Also, when I catch it, I should take it to get spayed or neutered. I am pretty sure there is a feral cat place around here I could take them to to get neutered.
Outside I have this enclosed play/tree house with screened in windows. Would this be good for them? I have cat beds and boxes in there already, and a climbing structure for my cat that hates being inside all the time. I would attempt to tame them, but once they were tame, they would go back outside and only come in for night. I don't especially want strays/ ferals around my cats inside. Any advice on making the trap, taming and anything else would be awesome! :)








, has guided you very well here. I may just add a few suggestions too.
) on an adult feral cat, it is possible but can take a very, very long time. Month's and month's. And as Stefan mentioned, it is best to bring them inside the home - into a safe, private room where you are able to start the process on a regular daily schedule. Feral cat's (most cat's for that matter) need a constant, regular, daily set schedule. Same thing, same time every day. Also, just agreeing totally with Stefan, that the two should be separated if you plan to socialize. They will feed off of each other's fears of human's and will only bond to each other, not you. So better to try one at a time, or have two separate areas to keep them. There is so much more we will share with you if this is what you decide to try 
