He's a call duck, one day old. He's a tiny guy! I see what you mean on the larger crumbles, we play a game I like to call "nom-nom-PTOOEY". He'll voraciously attack a crumb, then shake his head and fling it away a good 6-12 inches away! I try to break them apart with my fingers but he doesn't go for the smaller crumb.
Okay, yeah some of the wee ones can struggle a bit.. you could try breaking it down more or perhaps another brand? I do know i have found crumb sizes vary loads.