I actually don't see too much corn in the NCO and mine have no problems with it. The feeder I have is great because the depth has three adjustments, so there is much much less spillage and no digging at all. I have the one in the pic on the 2nd setting. I noticed in Bennies there was a great scratch from NH that was organic and non GMO with corn and millet which I bought as a night treat for the girls. It's so hard to get good prices on the NCO, that it makes you want to be a distributor if you can.