Mine are the same way. They have 47 acres ( not that I want them way out of my sight) but they stay close to the house and barn. I do feed them feed for breakfast when I let them out. Then lunch more feed, a afternoon snack of veges or healthy left overs from our table, then of course dinner. More feed.They eat bugs,grass, weed seeds & etc in between. Its really no wonder that they swarm me and my hubby for grub instead of finding it ALL for their selfs. I think most of us have good intentions on allowing free ranging. We know its the best for them, but somewhere along the way we fall in love with those little buggers running up to us peeping and squawking for handouts.
For me its a co-dependent relationship. lol. They love the food, try telling them too much of a good is a bad thing. I love feeding them, and spending time talking chicken to them. I know all the hand outs its not in their best interest buuutt I CANT HELP IT! ......Guess I should add thats its gotten so bad they are now coming to the front door of the house raising cain untill I come out with extras!