Ok I have had 4rouen 1 khaki and a ancona for about 5 months and they eat ALOT. I feed them like six cups (as in cups you drink out of). And today I just got a breeding pair of call ducks (a magpie call and a white pied call) and I fed them 3 cups (as in cups you drink out of) and they ate it all! It makes me think that the lady I got them from wasn't feeding them right. becuase I feed my big ones six cups and they only eat half and the big boys weigh a good 9 lb. and these tiny little calls ate as much as them! what the heck! And my calls only weigh 2 3 lb. they shouldn't eat that much should they?