The nest box and their feed bowls are inside this shelter. Larger flights of twenty or more feet have been used successfully by some breeders. Larger housing also minimizes their interest in destroying their aviary. Small cages where they are bored can lead to their destroying the wire and their possible escape. The concept that if too much space is provided the birds will not breed is false.
More room encourages a healthy, well exercised pair and long term breeding success.
In a home situation, macaws are best housed in the largest space available. Their powerful mandible can eventually break all but the most sturdy cage welds. Specially designed cages should ideally be large enough for them to open their wings and have ample room for their tail or head without hitting any cage surface. Their feeding and water trays need to be quite large in order to accommodate their large mandible and head. Bowls that are eight to ten inches in diameter are ideal as the birds can see the variety of food available and access it easily.