Crows love cat food and peanuts. Make sure they're just regular shelled peanuts. I'll also sometimes bring tuna for Craig and some boiled eggs for something different.I'm definitely taking up your hobby of feeding wild birds. My son's are still too young for a dog and I need to connect with nature again in this rotten city now that I'm back.
No bread though. No nutrients in it. Feed the same group of crows long enough and you'll eventually have them feel comfortable around you and one will fall in love with you and stay closer than the others.
This lady here has her Russian Craig and uploads videos almost daily and I copy her style.