I am going through a 50 lb bag a day. I have chickens but I was only going through a bag every 3 days. At first I thought it was my 11 orps but we watched the ducks empty a bowl in minutes. We have 6 hatchery runners(look like pekin crosses ), 5 cayuga, and 6 nice runners(metzer). Is there anything else they can eat? They get grass....are they supposed to eat all day like this or am I overfeeding them?