I've built a new two tier, semi-enclosed nesting box for my 16 hens (who are all 19 weeks old) (BO, Cochins, Australorp, Polish, Delaware, White Rock) but they refuse to even go anywhere NEAR the nesting box. I've put a few hens in it but they have no desire to stay in it. I've got dummy eggs in it, but they will never see those eggs because they won't go near it!!!! It's been there for a week but I haven't ever witnessed any of them checking it out.... Are they just too young or what? Maybe they dislike the purple paint?? Most of the heavier breeds' faces are very red, but I've never heard them clucking about, or seen them squatting. What gives?