Cardinals are very beautiful birds. A pair used to come to our feeders; the female would wait in the tree and the male would bring food to her. I like blue jays as well but I never see them anymore. I only hear their caws in the summer. Is it true they're considered birds of prey? Someone told me that once.
It's interesting that house sparrows only live where people do. You won't see them in forests. At least I don't!