Our farm cats certainly did hunt rats, and rodents were a far larger part of their diet than birds. Rabbits, too. Never a chicken (in the article) - I can’t imagine a cat hunting a chicken unless the cat was exceptionally large and healthy.
We’ve also owned a couple “suburban” Chartreaux cats specifically bred to hunt rats. Fearsome beasts that hunted nothing but kibble in reality.
Can confirm. We had a cat, at a shared house in San Francisco, which our landlord (mainly to be a jerk) forced us to get rid of. Rats immediately appeared, rummaging through our pantry and tearing up our clothes. I remember one cheekily glaring at me from a piece of furniture in the hallway. They were wood rats, quite fortunately, so kind of cute and not particularly disease-ridden, but absolutely a nuisance.
I dutifully collected confirmation and quotes from exterminators, and forwarded them to our landlord, along with a note saying, "look, we never saw these while the cat was here, how about you let us send back the pet deposit you forcibly refunded [yeah, he'd known about the cat all along; he'd found a loophole, and I told you he was doing it to be a jerk], and we bring him back?" He did. We did. We never saw another rat.
We’ve also owned a couple “suburban” Chartreaux cats specifically bred to hunt rats. Fearsome beasts that hunted nothing but kibble in reality.