For some reason, my big hens want to eat the chick food instead of their layer pellets. I had a mother hen hatch out 9 chicks and they're 5 weeks old now. They are all integrated with the flock and Mama hen has now pretty much said good bye to them, since she's back on the roost with the other big hens. I don't have the space to separate the little ones from the big ones, and so I've put their feeder on the floor of the coop and the big hens feeder is hanging from the ceiling. Does anyone have any tried and true method to keep them from eating the chick food?