For waterfowl pellets is easier for them to swallow and less is wasted! Another thing too waterfowl ten to fill up faster eating pellets! Waterfowl can't fully swallow there food with water, when waterfowl eat crumbles an over stuff themselves at one time then take a drink; Alot of times they choke! I only feed crumbles the first two months then switch to pellets till 6 months old then they get switched to Mazuri waterfowl pellets which is a float pOnd pellet almost like cat food that is the size of a BB. Of course you wouldn't want to feed Mazuri due to price($29 to $39for 50 pound) but it last twice as long it keeps them full longer! Pellets should runthe same price as crumble and most feed stores carry or can order pellets!