For visual identification tail feathers of one pair were cut and certain behavioral tendencies of some individuals were noted. Other pairs of adults were not visually identifiable. Closed bands were left on juveniles. Private breeding sites in which pairs that showed breeding behavior could be separated were constructed adjacent to the flight cage. Five individual chain link suspended cages, each measuring 6' x 6' x 12' were extended from the west side of the flight.
Chain link tunnels with doors connected the individual cages to the flight.
The tunnel doors were designed to be closed for individual breeding pairs. Each individual cage was equipped with a front and rear perch. One end was replaced with plywood with an eight inch entrance hole. The macaws were fed large macaw mix, hazel and Brazil nuts, fresh fruits and vegetables and monkey biscuits. Water bowls were placed on the floor in the middle of the flight.