Breeding habitat: large, old trees (preferably pine) in coastal woodland, archipelago islands or by inland lakes. The nest is enormous — up to 2 metres wide and 3 metres deep — and the same nest is used for many years, sometimes decades.
Breeding season: very early — egg-laying as early as February or March. The female lays 1–3 eggs and incubates for 38–42 days. The young fledge after 70–90 days and stay with their parents for several months.