Last week I bought a grain grinder at Tractor Supply, works great for grinding up grit, oyster shell and grain. $30.00 + free ship to store. I watched the button quail eat and the chunks were to big, I could see It while they were pecking away. The grinder is adjustable so you can pretty much get whatever size you want. I can say thought that it is much for those little beaks to pick up grit, oyster shell and food. Just thought I would pass it on. Probably like many of you, I had to get it in my budget but am really happy I got the grinder.