Black Hawk-Eagle

Overview

The black hawk-eagle (Spizaetus tyrannus) is a medium-to-large forest raptor of the humid Neotropics. Despite its relatively modest size — 58–70 cm, 900–1,300 g — it is an apex predator in the forest canopy layer, hunting prey as large as monkeys, large rodents, and opossums. The Brazilian common name, gavião-pega-macaco (“monkey-catching hawk”), captures the reputation accurately.

Adults are largely black with a long, barred tail and characteristic white line above the eye. In flight, the wings are short and broad with a rounded profile — suited for maneuvering through dense forest. The call is a high, carrying whistle given in flight; it often announces the bird before you see it.

Why Tortuguero

Tortuguero’s primary forest provides the habitat structure the black hawk-eagle depends on: continuous, tall closed-canopy forest with a complex understory where prey populations are dense and flight corridors allow ambush hunting. The species has been recorded in the park and is likely resident throughout the forest interior, though population density in any given area is low. It tends to hunt by perching silently at mid-canopy height and then launching at prey — not a species that announces itself.

How to see them (honestly)

• The call is the best cue. The black hawk-eagle gives a clear, high whistle from the canopy; if you hear something raptor-like above the forest, stop and scan.
• Early morning flights over the canopy offer silhouette views — look for the long tail and short, broad wings.
• Forest-edge trails and the inland canal sections where forest reaches to the water are better than open lagoon tours for this species.
• A sighting from the boat canals is possible but uncommon; this is primarily a forest-interior bird.

Status note

The IUCN rates the black hawk-eagle as Least Concern with a stable or slightly declining population. The species is broadly distributed and not immediately threatened, but like all primary-forest raptors it depends on large, intact forest blocks. Deforestation in the buffer zones surrounding Tortuguero reduces habitat connectivity and puts long-term pressure on the population. Within the park boundaries, it has the primary-forest cover it needs.