The next chart shows us the known data on stray cats. The number of cats claimed to be fed by, but not owned by, the respondents ranges from 2.6 to 3.7 cats per household feeding strays. In two studies respondents were asked whether or not the strays they had been feeding had had kittens, and the disposition of the kittens. Although cats can have litters of up to 8 at a time, the average litter is 4.25 kittens, 2.1 times per year. In unowned cats, we find the opposite.
Opinion is that there is very high mortality among the queens during pregnancy and delivery.
Assume 1000 owned vs unowned cats Next, look at this chart . We are going to take all of the data from our various sources, and put it together to show what the actual reproduction of owned and unowned cats should be. On the owned cat side, this would be the least amount of kittens expected, and on the unowned side, this would be the worst case scenario. But, we need 143 to replace those adults that die every year. Some of these kittens will be adopted into the owned cat population, the rest will be surplus.