In Costa Rica it nests from December to June, with most pairs laying the first egg in January. The male macaw only has semen available during the breeding season; the semen has a low sperm concentration. The female lays a clutch of 2-3 eggs and incubates them for 26 days. A single adult (possibly the female) incubates the eggs while the other forages for food and feeds the incubating bird. Both parents participate in rearing the young. The nest contains chicks from February to April in Costa Rica, with the young usually being completely feathered by the end of April, rarely by mid-June. Chicks hatch weighing 23g, can fly after 12–13 weeks, and are weaned after 18–20 weeks when they weigh over 900g. In the wild, generally two young are produced per nest. Chicks eat the same things as the parents. This species has high reproductive success (60% of young survive). After fledging juveniles stay with the parents as a family unit for a significant amount of time, only separating gradually from them. Juvenile birds, at least in captivity, are mature after 5 years, and sexually mature after 6 or 7 years. This species can live to 50–60, to a maximum of 70, years of age.