I am glad to learn that crows can live beyond a few years. I helped raise a baby crow when I was young, and when she left and flew away with other crows, I always wondered what happened to her and how long she may have lived. her name was "Ima" and I taught her to say, "Ima crow!"
Question 2. I am located in Charleston, SC and have only seen the American Crow here. I started feeding a murder of crows nearby our church, and now they come flocking to my car every time I come to church! Once, a crow followed me from a coffee shop where I had purchased a coffee and met me at my church in the parking lot looking for food. He/she must have been familiar enough with my truck and my voice to know that I was the person who fed them!