am af the day going out to pair up the doos who els is paird up the pairs i whant to go togethere hav had a couple of days in the box with each othere and no thare nest box so its only a mater of opening the door to let the hens in never use nest fronts and before use all start about a cock could tread this and that that would only hapen if the hen has not bonded with the cock in his box or a lazey cock not looking after his hen so spending time well before pairing up always works for me ;)