Feral cats are the offspring of house cats, often confused with stray cats, a feral cat has never actually belonged to a person or had any socialization with people. They prefer to live in colonies, ranging from a few individuals to several dozen feral cats. Multiple generations of the same family will live together if there is a food source nearby. Feral cats then become an aggressive apex predator. They typically eat rodents, birds, fish, insects, garbage, unattended pet food, and even roadkill. Once a cat colony finds an easy source of food, the animals will keep coming back. Feral cats are just one kind of animal that have rat-killing prowess, a natural predator or exterminator. Feral cats are a different beast from pet cats, an adult rat is a formidable opponent for a cat, only cats that were trained by their mothers how to deal with a rat.
https://gogreenpestcontrol.ca/feral-cats-apex-rat-predator/
gogreenpestcontrol.ca insectandrodentexterminators.com Ladner Tsawwassen Delta B.C., Randy Bilesky BsF CPA RPF
https://www.linkedin.com/pulse/feral-cats-apex-rat-predator-randy-bilesky/?published=t
https://www.delta-optimist.com/opinion/blogs/blog-feral-cats-have-rat-killing-prowess-1.24036122