Rare Raptor Clash: Ornate Hawk-Eagle Slays Crested Owl in Costa Rica

Scientists in Costa Rica have documented an extraordinary and previously unrecorded predation event in the lowland forests of Corcovado National Park, capturing a rare interaction between three distinct raptor species.

During a recent field excursion, researchers observed an ornate hawk-eagle (Spizaetus ornatus) successfully catching and killing a crested owl (Lophostrix cristata). According to authors Pablo Largaespada Caamaño and José Manuel Mora, writing in the Caribbean Journal of Science, the direct predation of a crested owl by an ornate hawk-eagle has never been formally documented before this record.

A Dramatic Attempt at Kleptoparasitism

Adding to the drama of the encounter, a third raptor species entered the scene. A common black hawk (Buteogallus anthracinus), which had been observing the struggle closely from a nearby perch, suddenly swooped in attempting to steal the freshly caught meal.

This feeding strategy, known as kleptoparasitism, involves one animal deliberately seizing food captured by another. However, the powerful ornate hawk-eagle was in no mood to surrender its prize. The eagle aggressively fought off the intrusive black hawk, successfully retained its prey, and eventually carried the owl up to a high forest branch.

Understanding Predator-Prey Dynamics in Tropical Ecosystems

Ornate hawk-eagles are apex predators native to the tropical Americas, boasting a wingspan exceeding one meter. They are known to hunt various medium-sized mammals and birds, including monkeys, squirrels, toucans, and cracids. Despite their diverse diet, researchers emphasize that direct observations of intraguild predation—where competing species kill and eat one another—involving owls remain exceptionally rare.

The study highlights that even medium-sized nocturnal raptors like the crested owl may occasionally fall victim to large forest-dwelling eagles. While a single observation cannot determine how frequently such attacks occur, researchers stress that documenting these rare events expands our baseline understanding of complex predator-prey dynamics within tropical raptor communities.