I have a black austrlorp and she has laid 8-10 eggs in the last 3 weeks-I THINK! She was hatched in March and is in with all my other hens (21) that hatched in May (16) and I'm not sure if they are eating the eggs or she's just not that regular yet! I do have 2 nest boxes mounted on the wall about 18 inches off the floor. Then I put a milk crate (filled with shavings) in there for her on the floor and all I have now is an empty milk crate. When I first put the nest boxes in there I filled with hay and they ate it and strew it all over! O.K. I was raking and cleaning the coop and found an egg buried in the shavings- Is there a sure fire way to get her to use the box?