I feed the crows in my area. When we are out working in the gardens the crows gather to watch and as we are putting things away the start calling to us. Like we didn't know they were there.
I save meat trimmings for them. All the fat on the outside get trimmed before we can or cook it and the crows love it. I tried to feed them peanuts like I did with the crows in Seattle but they showed no interest in the nuts at all. They clean all the trimmings up and take them away to stash them for later use. I don't feed them daily - they need to be able to find natural food too. There are a lot of red tailed hawks here too and they don't get along with the crows but they also don't compete for food - except carrion. The crows will chase the hawks out of their area and the hawks will go after fledgling crows. There is no place close by for the crows to roost so they leave the area before the sun goes down. I don't encourage the crows to com close - they don't need to start trusting people - this is farming country and the farmers think they destroy crops and kill young game birds. They might be right, they stay out of my gardens unless the bugs are there and I haven't seen the remains of any game birds. I do know that crows are like people and dogs in that they are omnivorous and intelligent to the point they communicate (smarter than dogs). As much as I like the birds, I would never want one for a pet. You would have to keep them challenged all the time or they would destroy everything in sight. Crows are harder to train because they don't much care about pleasing anyone but themselves. That might be different if you raised them from the egg. They learn a lot from their parents and extended family in the first couple of years of their lives.