We have 5 cats living here because the food is good, plentiful and appears on a regular basis--although it has cost them the equipment necessary to reproduce. 2 are strictly indoor cats, one of which is pure white with long hair and orange ears so we really don't want the responsibility of cleaning him up--while he'd really like to go out and does on occasion,sneak out if a door is left ajar (he can open the sliding glass door there is a crack wide enough to get a claw into.). These freedom jaunts have not gone well for him as he's come face to face with a free ranging chicken which temporarily, at least, cures him of the need to see the world. The other is kept in because she is so darn wild that my wife--who adores her--is afraid she will run away. In truth she has not the least desire to go out and would be back in in a minute if it were to happen. I rescued this cat as a kitten from our woodpile but, since it was I who took her to the vet for her initial exam and shots, she has decided I am to be feared and will not have anything to do with me.
The other 3, 2 of which were captured and deposited in the local SPCA and the 3rd who wandered in here, are allowed access to the outside at any time during the day but are in locked down from dusk to dawn. Periodically during the course of the day they will come to the door and give forlorn looks that cause the nearest human to open the door and admit them--checking first to make sure they aren't bearing gifts. At which point they will make a cursory check of their food dish, request some food that is not there, pause only to sample a morsel or two of the proffered tidbits and wander to a door on the opposite side of the house to return to the outdoors. (Often, they don't stop at the food dish but use this shortcut to get from the front yard to the back or visa versa.) While we have a year 'round bird feeder in the tree just off our deck, songbirds don't seem to be high on their menu--we actually lose more birds from their crashing into the house windows that the cats get--their main prey is of the furry variety. Voles, mice, baby rabbits and chipmunks are high on the list--the latter being the main prey during maple seed season. While some of these are eaten, most of the bodies are deposited on the mats in front of the doors where they will be in the way of foot traffic. It should be noted that these animals are usually hunted off our property and dragged home. The mice living near the chicken coop or that come into the cellar are considered emergency rations not to be hunted unless there is some sort of catastrophic disaster. The lone exception being the one indoor cat who, if she discovers a nest of young mice in the cellar, will carry each one up to our bedroom and offer it to my wife--usually while under the cover of darkness. Only because she will play with it on top of the sleeping adults is this "toy"discovered and removed, only to have her return shortly with another and another and another until the nest is empty.
In the 46 years we've live here--outside of town on a secondary road--we've shared our lives with a total of 14 cats--one we moved here with a couple that our kids rehomed on us--counting the current 5. (We also had a promiscuous purebred Persian that my daughter wanted to breed who kept escaping, getting pregnant and had a total of 18 kittens before we gave up and had her spayed. We kept only two of her kittens, the rest went to pet shops.) Of the 9--outdoor cats all--3 died as the result of being hit by vehicles, one was lost to a predator (probably a horned owl) and the other 5 died of natural causes--4 were 17 or older. In the same time period we've had 5 dogs, 2 killed on the road and one by a coyote, the others died of old age--lost the last one 15 yrs ago.