The male on the other hand is clipped to prevent him from getting to the hen in case of an attack. Most feel a big flight is necessary for the well being of the pair. Mine although, were in five foot flights and did very well, but personally I would like them in eight foot flights. There are many breeders that are breeding them in small flights in their kitchens, basements, and their garages. Solitude seems to be important, and since they like sleeping in their nest box, they should always have one available.
Most breeders seem to prefer a deep nest box, but again, there are exceptions.
Their diet doesn't seem to be anything exceptional, and there are no major problems with specific health concerns, that we are aware of. A good parrot diet seems all that is required. Hawk-heads seem to really like their veggies and fruit. They are extremely affectionate, and rambunctious. Hawk-heads seem to have a knack of entertaining them selves, so you are not at their beck and call.