A cat would have absolutely no problem surviving in my area. I've seen baby chipmunks scurrying everywhere, baby rabbits, mice walking across our board-on-board fence at night, and tons of moths (I'm positive that my Mysty survived on crunchy, protein rich insects and bugs as a kitten). Even water isn't a problem this year as we've really had our share of rainstorms (the water table is quite high, I've been told) and you always see standing water somewhere. The creek is full to the brim, also.
The thing with my Mysty is that he was such an agreeable, peace-loving cat who put up with a lot, as roaming cats, and the calico that was spraying our territory and hissing at Mysty and me! My neighbor got a real thrill out of Mysty and the calico last summer. She really enjoyed watching them chase each other all around the backyards. Mysty would chase the calico and the calico would turn around and smack Mysty with her paw. Early last fall I watched several cats that I never saw before approach Mysty. One big, mangy white cat stood next to Mysty, snarling and growling at him. Mysty just stood there motionless as if listening to the cat, until eventually the white cat walked away.
I just found out that the female calico lives in the owners' garage, sleeps on the owners' cars or in a cat bed there, and has no litter box. She comes and goes as she pleases because the garage door is left open a foot or so. She visits my yard daily and now I know why she likes to enter and exit people's garages.
For all I know, the calico's hissing and spraying could have been just plain jealousy, because Mysty was allowed in our house and the calico had to live in her owners' garage or outdoors.
The vet told me to keep my two new kittens inside the house.