I've used pellets forever. I tried crumbles once but they really DO waste A LOT. They get bored and just shove it out the feeders, pellets are a little harder to do that with. Also, my bag of crumbles was 1/2 crumble, 1/2 powder. They don't eat powder, it just goes to waste. Pellets don't powderize, they crumble! They can still eat that! The end result is largely pellets, some crumbles, and very little powder. That is why I prefer pellets. Now with bantams and young birds, crumbles would probably go down a little better because it is easier for them to swallow, I would think.
They are not different in ingredients, just size.
