Well I have twelve hens,4 buff orpingtons 1 amauricana 1 red star, and six barred rocks. I had two eggs on the floor, and 4 in the boxes. 1 cracked but all the rest were good. Pretty good day, I got my first egg last week or so so I think they are still figuring it out. Thanks for all the good tips everyone. Tomorrow I'm going to put two golf balls in each box with some straw. I have pine shavings in them now.