Why?
We love most of the birds that visit our property
I like birds too. But cats kill birds — that’s nature. The smarter birds will learn to keep clear of them, and then pass on their genes. I wouldn’t worry about a lack of birds visiting your property due to cats.
That said, if feral cats are pests on my property, I’d have no qualms about shooting them.
I had to stop feeding birds because in drawing them to my back yard, I was creating a target-rich environment for my cats.
It’s sad to see a momma bird screeching, and when I look around I see a baby bird in my cats’ mouth.