Thanks CR.
Well, I had to clean poop out of the feeder just now, so I definitely need to get a pie plate or funnel or something. I think the things they sell that go with my feeder specifically only cover the top of the feeder, not the part they eat out of which is wider. So, I have to figure something out. I'll measure the diameter and go from there. Or move the feeder, but it's already less accessible than it was in the open run (since I put it in a corner of the coop) so I don't want to put if further in the corner so that only 2-3 girls can eat at the same time. That's no good.