My four-week-old Anconas love rolled oats in addition to their Flock Raiser (working toward Holderread's recommendation of cutting commercial pellets with oats up to 25% by weight), but rolled oats from the grocery store are pricey, and the feed store carries oats only in whole or crimped. Does anyone have a particular preference? I'd prefer to feed whole, because modified grains spoil quickly, but there's no point investing in a 50-pound bag of whole oats if the ducks won't eat it.