Yes. The anti-cat zealots are out in force recently. I get that it is safer for cats to be indoors. Both for themselves and for the birds they prey upon. But cats were an important part of keeping rodents under control way before cats were domesticated. Continuing their natural role in the ecosystem is not destroying the balance of nature.
I think too the number of songbirds killed is greatly exaggerated. The example is always given of some cat who had devoured, destroyed or what have you large quantities of feathered innocents. I would argue such cats are atypical.
Your typical house cat that is outdoors part of the time is not the problem. Feral cat colonies that do-gooders insist should be vaccinated, fixed, and released are.
My mostly indoors housecat killed at least 4 birds that I know of this year.
I don't know about that. I had two cats that were indoor/outdoor cats. We had a pet door, so they could come and go at will. The two cats had all the store bought cat food they wanted- the bowl always had food. But between spring and fall, they brought inside at least one bird a day, not to mention numerous lizards, snakes, rabbits, mice, bats (yes bats), etc... . This started when they were about one year old and lasted until they were about ten years old. They usually didn't even finish killing them, they were just playing. They left the killing to the dog.