A top-of-the-food chain predator, this enormous bird is not abundant anywhere in its vast range from the Mexican States of Veracruz and Oaxaca south to Argentina, Bolivia, and Southern Brazil. A specialist in eating sloths and monkeys, it depends on extensive forest, so is considered Near-Threatened due to habitat loss. Females may exceed 20 pounds in weight. Probably kept by Montezuma, it was displayed in Europe as early as 1778. The first successful captive breeding did not occur until 1981. The female displayed at the DWA hatched at the San Diego Zoo.