Some of the few captive specimens have been mistaken for the much larger Harpy eagle. This remarkable resemblance extends to juvenile plumage — newly fledged birds of both species have white heads. Crested eagles usually eat smaller monkeys than Harpies, and more often hunt reptiles. Like the Harpy eagle, it is considered Near Threatened, since it requires mature forest. Those at the DWA are now the only birds outside of Tropical America, though this species bred at the Oklahoma City Zoo some years ago.