A cat can start breeding as early 4 months in age, and they may have 2 to 3 broods a year with 3-5 kittens in each brood. Start with a male and female kitten and you could produce hundreds of feral cats within a couple of years. You’ve got to get those critters fixed.
Pigeons used to be a real menace in our neighborhood. Then we started letting our cats out.
My barn kitty routinely brings her “trophies” to the front step to show them off before dining. Mice, voles, a rat every once in a while, but no birds. They must be too much work. The two house kitties keep the place free of mice. Works for me.
Idiot author needs to look up the difference between a wind tunnel and a wind turbine. I've never heard of a wind tunnel that killed birds.
One of the neighbors has a cat that visits all the time. If she keeps the mice away, great. As long as it leaves me alone and is not an attack cat I don’t have a problem with it.