None of my cats have ever brought a baby bird home. They’re too high up in the trees and out on limbs that won’t support a cat’s weight even if the cat was inclined to climb up a tree that far, which no cat would be in my experience. The only chicks that a cat would have access to would be those who fell out of a nest.
Birds are most vulnerable the first day the leave the nest.
I dated a girl back in the 80’s that could actually order her cat around. If she told that cat to sit, it would stop and sit. Darndest thing I ever saw.
I’ve had cats all my life, and never did one bring home a bird. They brought home mice and bugs.
But I’ve seen many eggs and baby birds - even pigeons and mourning doves - killed by crows; you see it daily in the Spring. And yet crows are still protected in this country - you can’t take one as a pet, even though in the past they were considered pests and dynamited by the roost-full.
My past cat squeek would prove your claim invalid. She was strictly a back deck cat who would not venture off the bottom step of the deck. On several occasions I observed her as she leaped thru the bars of the railing to grab a gold finch on a cone flower just off the deck in the garden then bring it back into the house and release it.
She also used the deck to spy into the garden and nabbed several baby rabbits and brought them into the house as they were squeeling. One died and the other survived after I let it go in the yard.
She would constantly catch voles off the deck and bring them into the house and release them for me..........LOL!