I have 2 Silkie roos about 6 months old. I have 7 hens that are laying - 2 buff Orpingtons, 2 Plymouth barred rocks, 2 Australorps, 1 special needs brown leghorn - and they use a communal nest, for the most part. The 2 roos will intermittently sit on the nest and eggs and guard/defend it/them...