Their layer pellets. Apparently if you take a small amount of pellets out of the feeder and offer it to the chickens from your hand, they taste soooo much better. I've been doing this once or twice a day now for about a week and they greedily gobble them up every time. My chickens expect a treat every time they see me. I don't like to disappoint, but I'm also not feeding them 10 treats a day. Thus pellets are the simple solution and the chickens are none the wiser.