We have four red sex links that are 3 months old. They have been in an outside coop for the last month. We got the yard set up a week ago so they can now free range a couple hours a day. We have to keep the coop closed because they rather eat their feed than free range. They will walk around the coop looking for an opening. (We put water outside the coop.) after one week yesterday they did start to eat grass and start to scratch like chickens. We have tried to give all kinds of leafy greens and they refuse to eat them. We have kept them in the coop with no access to feed for sux hours, just the greens and they refuse to eat them. When we bring the feed out they go on an eating spree. The weather is in the 30’s-40’s so we don’t want them going hungry too long. I thought chickens will eat anything? It is going to be an expensive winter if only feed.