"Intensive training" from the first day allow the birds to easily adapt to the laying aviary at a later date. The lower and the central level of the NATURA aviary are equipped with feeding and drinker lines. The upper level is designed as a resting area, as the pullets are naturally drawn to use the highest place at night. This behavior is encouraged by switching the lights in the lower and central levels off sooner than the lights in the top level, creating a sunset simulation.