My chickens are 10 weeks old today. I have no more starter for them (because my baby ducks eat a lot) I have been feeding my chickens a lot of fruit and lettuce, which they love. They are in the huge run so I am guessing they might be foraging. But probably not. I have a huge back of cracked corn for my pheasant when they get alittle bit older. Could I feed my chickens some corn?