Black Hawk-Eagle

Is a medium-to-large forest raptor characterized by its slender silhouette, measuring 58 to 71 centimeters (23 to 28 inches) in length and boasting a wingspan of approximately 115 to 140 centimeters (45 to 55 inches). The adult plumage is predominantly sooty black or dark charcoal-gray, highlighted by a prominent occipital crest that flares when the bird is alert or excited. This taxon features diagnostic white barring across its belly, flanks, thighs, and underwing coverts, which creates a striking contrast during flight. Its wings are relatively short and broad—an adaptation for maneuvering through dense forest canopies—while the tail is long and marked with three to four broad grayish-white bands and a narrow white terminal tip. The eyes are a brilliant golden yellow, providing a sharp contrast against the dark facial mask, and the tarsi are fully feathered down to the base of the feet, which are yellow with powerful black talons. Females are larger and heavier than males, representing the primary sexual dimorphism of the species.

Geographical distribution: Occurs widely throughout the Neotropical region, ranging from central and southern Mexico (primarily in states such as Veracruz, Chiapas, and Oaxaca), down through Central America (including Guatemala, Belize, Honduras, Nicaragua, Costa Rica, and Panama), to South America. In the Southern Hemisphere, its range encompasses Colombia, Venezuela, and the Guianas, stretching southward through the Amazon basin of Ecuador, Peru, Bolivia, and Brazil (where it inhabits both the Amazon and Atlantic forests), reaching its southern limits in northeastern Argentina (Misiones province) and eastern Paraguay.

Habitat: Shows a strong preference for humid tropical and subtropical lowland forests, gallery forests, semi-open woodlands, and the edges of primary and secondary forests. While it relies on dense canopy cover, this species exhibits a higher tolerance for habitat fragmentation than other members of its genus, occasionally utilizing mature secondary forest patches and agroforestry systems adjacent to pristine woodlands. Geographically, it is primarily found from sea level up to 1,500 meters (4,900 feet) in elevation, although exceptional sightings have been documented up to 2,000 meters (6,600 feet) in humid montane zones.

Feeding: Operates as an opportunistic, mainly arboreal carnivore. Its diet consists heavily of small to medium-sized mammals, such as small monkeys (e.g., marmosets), opossums (genus Didelphis), squirrels, and bats snatched directly from their roosts. Additionally, a significant portion of its prey consists of medium-to-large forest birds, including toucans, guans and chachalacas (family Cracidae), and various passerines. It may also opportunistically consume reptiles, specifically arboreal iguanas and medium-sized snakes.

Behavior: Is generally solitary or observed in territorial pairs. It hunts primarily by ambushing prey from hidden perches within the upper canopy, executing swift and precise aerial strikes. This species is highly vocal, particularly during the morning hours when it performs spectacular high-altitude soaring displays over its territory, emitting a series of clear, rising whistles translated as a distinctive "wheee-eeee-up". Its flight pattern is characterized by rapid, deep wingbeats alternated with short, horizontal glides, often with wings held slightly dihedral.

Nesting: Builds large, bulky stick nests woven from dry twigs, vines, and lined with green leaves. These structures are placed at great heights, typically between 15 and 30 meters (50 to 100 feet) above the ground, nestled in the main forks of emergent forest trees or tall palm structures. The female usually lays a single egg (rarely two) that is white or bluish-white, marked with reddish-brown speckling. Incubation lasts approximately 40 to 45 days and is performed mostly by the female, while the male provides food. The nestling displays a slow development rate, remaining dependent on intense parental care for several months after fledging.

Conservation status: Is currently listed as Least Concern (LC) on the IUCN Red List. Although it maintains a vast geographic range, local populations are decreasing due to rapid habitat loss, forest fragmentation driven by agricultural expansion, and logging. Additionally, human-wildlife conflict occasionally leads to direct persecution and shooting in rural areas where it is accused of preying on domestic poultry.