In Spring, we let our chickens out of the run after about 10am and call them back in for lettuce and corn around 3pm. That gives them 5 good hours to go hunting for worms, slugs, insects and voles and generally explore our 6 acres. So where do they go? 6 feet away from their run digging up my flowerbeds! Arggh.
Next project must be to install a tv in their coop so they can watch repeats of Chicken Run and understand what other chickens have to go through to gain their freedom. Perhaps they would appreciate it more.