Injured bird...anything we can do?

Yep
Being a birdwatcher, I have a hard time liking cat owners who let their cats roam around and kill everything that moves.
Put a bell with a collar on it.
I am a dog guy all day. Really don’t understand the pet cat thing.
Cats do catch mice, which I can appreciate, but they'll definitely snatch a bird when the opportunity is there. If it's a blue jay, I'm good with it. Lol.