Since we got our chickens I always wanted a fancy nesting box set, but used milk crates in the mean time. Milk crates worked great but I wanted a propper nesting box. So I finally got one, a really nice ten holer. Two weeks and still only one hen will go near it. what can I do? I took all, but one crate out. some of my young hens that have not started laying yet seem to like it??