The birds nest in tree holes, stumps, caves, or in the abandoned nests of other large birds.
Monogamous pairs have one to five eggs (two is typical), both the male and female incubate, and the male also hunts for food.
Young start roaming from the nest onto nearby branches at 6 to 7 weeks, when they are called "branchers", but cannot fly well until 9 to 10 weeks old. They are fed for another few weeks as they are slowly weaned.
Families remain loosely associated during summer before young disperse in the autumn. Adults tend to remain near their breeding areas year-round while juveniles disperse widely, over 250 km (150 miles) in the autumn