Wow, having chickens on 3 acres would be great. We used to have chickens and there is nothing like getting your own eggs in the morning. They are really not much trouble and you can grow fond of them. The neighbors just have to learn to deal with the noise and usually put up with it if you give them gifts of eggs.
Have you thought about getting some guinea fowl to keep down the insects, too?
You could also have llamas or alpacas. I have never done that and would love to. They don’t need as much spaces as horses or cows. You could have a goat, which is excellent for keeping down the weeds. Or a few sheep.
the neighbors of the place we’d go have llamas. they’re mean though.