The first day I bought two Golden wing duck chickens, I didn't have any feed so I just feed them cracked corn. They love that stuff badly, but when I put some Purnia layenya in there with them it seems like there waiting for the corn. So whats the deal with crack corn should I use it as a treat? Or are they going to starve them selfs not eating the Prrina waiting on me to throw the corn to them? So just keep feeding the purina everyday?