It is essential to offer animal protein in order to substitute the insect larvae that infest ripe tropical fruits. Hyacinthine Macaws tend to live in groups. It may be that they even prefer to have short distances between neighbouring nests. This is emphazised in the EEP stock. The best breeding results occur in those participants, who keep several pairs closely together.
Single pairs show a tendency to breed only every second year.
Normally one chick hatches after 28 days of incubation. After 100 days the chick leaves the nest. Two chicks in one nest are a rare event. The situation of the Hyacinthine Macaw in captivity is improving.