I have seventeen 10-12ish week old pullets (I hope) and I have taken made the nesting boxes inaccessible to them so that they do not learn to sleep there. When should I make them available? One of my larger red sex links has a red face which from my understanding can be a sign of maturation and she is also making little nests in the coop unlike the others. I don't want to cause her or the others stress by leaving the nesting boxes unavailable for too long. Any thoughts?