Our chickens have free roam of our yard when someone is around (we have to watch our for the Cooper's Hawk). They love getting attention and will eat cracked corn right out of your hand. The kids love playing with them. And what's the by-product of this relationship?...eggs! Our eggs are different colors depending on the chicken that laid them. On average a chicken will lay one egg a day and eggs will keep for a month, so we are going to be rolling in them soon!
Notice the yolk is much oranger than what you get from the store. The shells are much harder to crack too (which is good when the 3 year old brings them in.)