Crested Eagle
VU

Crested Eagle

Morphnus guianensis

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Crested_eagle

Overview

The Crested Eagle (Morphnus guianensis) is a magnificent raptor distinguished by its prominent feathered crest and powerful build. This large eagle measures 78-89 cm in length with a wingspan reaching 176 cm, displaying distinctive plumage that varies from dark brown to grayish phases. Adults exhibit striking yellow eyes, a robust hooked bill, and feathered legs extending to powerful talons adapted for capturing substantial prey.

The species inhabits primary and mature secondary tropical rainforests across Central and South America, from southern Mexico through the Amazon Basin to northern Argentina. These eagles prefer dense canopy environments where they hunt medium-sized mammals including sloths, monkeys, and opossums, as well as large birds and reptiles. Crested Eagles are solitary and territorial, with pairs maintaining large home ranges that can exceed 1,000 hectares.

They construct massive stick nests high in emergent trees, typically producing a single offspring every two to three years. The species is classified as Vulnerable by the IUCN due to ongoing habitat loss and fragmentation throughout its range. However, encouraging conservation developments include the establishment of large protected areas across the Amazon Basin and successful breeding programs in several countries.

Recent camera trap studies have documented stable populations in well-protected reserves, and the species shows remarkable adaptability to selectively logged forests when sufficient canopy cover remains. Indigenous territories across the Amazon continue to provide crucial habitat refuges for this impressive apex predator.

Crested Eagles face severe pressure from accelerating deforestation rates across the Amazon Basin and Central American forests, with large-scale cattle ranching and agricultural expansion eliminating vast areas of suitable habitat. The species' requirement for extensive territories and mature forest canopy makes it particularly vulnerable to habitat fragmentation, as isolated forest patches cannot support viable breeding populations. Additionally, the eagles' slow reproductive rate and late sexual maturity limit their ability to recover from population declines caused by direct persecution and accidental poisoning from livestock protection programs.

Threat summary

Habitat

Crested Eagles inhabit lowland tropical rainforests from sea level to 1,000 meters elevation, showing strong preference for primary forests with intact canopy structure. They require large territories of mature forest with emergent trees for nesting and dense understory vegetation that supports their diverse prey base of arboreal mammals.

TERRESTRIAL· major

Frequently asked questions

Why is Crested Eagle classified as Vulnerable?
Crested Eagle is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Crested Eagles face severe pressure from accelerating deforestation rates across the Amazon Basin and Central American forests, with large-scale cattle ranching and agricultural expansion eliminating vast areas of suitable habitat. The species' requirement for extensive territories and mature forest canopy makes it particularly vulnerable to habitat fragmentation, as isolated forest patches cannot support viable breeding populations. Additionally, the eagles' slow reproductive rate and late sexual maturity limit their ability to recover from population declines caused by direct persecution and accidental poisoning from livestock protection programs.
Where does Crested Eagle live?
Crested Eagle occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Crested Eagle?
The main threats to Crested Eagle are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.