I have 10 young RIR pullets that are about 4 months old....anyway I have 10 nest boxes where my domiques hens lay....well sometimes I go out to the pen and some of the RIR pullets and sitting in the boxes like they are going to lay an egg....I said what the heck....I told my DH and he said that maybe they are just sitting there getting warm....I feed laying crumbles and 3way scratch mix....do you think they are trying to lay early?