Huh. I think I'll get one of those (just called my feed store and they'll get some in next week). I'll use it in the new coop I'm planning on building.
Meanwhile, I just got SO flippin' tired of the mud muck, I bought 40 pavers (12" x 12") to make a walkway to/from the run and a tiny "patio" inside the run on which I'll place the feeder. (I've already got an umbrella to keep the rain from dampening up the feed in the feeder, but that doesn't take care of the muck around it.)
I'm am too old and fat to want to slip on this adobe mud one more time.
And, once the rainy season is over, those pavers will be practically set in concrete, as that adobe cra.... errr...... crud.... hardens up.