I'm about to move to 1 acre that has a chook pen and I am keen to keep chooks myself. I have not done this since I was a boy at which time we did not free range the chooks because of our dogs. I intend to have many vegetable gardens and have read in permaculture and other books that free ranging the chooks in the vegetable patch can assist in pest control. In practice do the chooks eat the vegetables as well - or are they pre-occupied with scratching round for pests etc and just take a couple of nips at the vegetables???