The miligold macaw is a hybrid cross between a military macaw and a blue-and-gold macaw. The miligold macaw is a first-generation hybrid macaw — its parents are two species of naturally occurring macaws. The miligold macaw tends to inherit the intelligence and trainability of its military macaw parent as well as the good nature of the blue-and-gold macaw. This hybrid often has the blues of the blue-and-gold macaw tempered with the military macaw, which makes a greener aquamarine color, with the outer wings retaining blue flight feathers.
Hybrid macaws are offspring of the crossing of two macaw species. Hybrid macaws are most often bred for their amazing color. Also, hybridization of macaws in captivity has often been the result of accident, e.g., two species of macaw are kept in the same environment, they bond and produce offspring.
Some aviculturists are against hybridization, believing that crossing species muddies the "pure" bloodlines of the parent species. When a naturally occurring macaw species population is threatened, the primary effort is to breed the species to help it survive and, in such cases hybridization could potentially undermine this effort. Those who own and love hybrids explain they are even more beautiful, more intelligent and, in some cases, less prone to disease than the pure species from which they were bred.
Like all macaws, whether naturally occurring species or hybrids, the miligold macaw needs a good deal of consistent socialization and training to make it a well-behaved pet. Because it is quite large, it needs sufficiently wide cage with plenty of toys to stay engaged with, as well as a plenty out-of-cage time to exercise and interact with its family. Because it may inherit shyness from its military macaw parent, be patient and loving when training and socializing this bird. Like other macaws, this hybrid can have the personality traits of a toddler, including temper tantrums, so patient, consistent behavior training is important.