Harpy Eagle vs Sulawesi Honey-buzzard

Harpia harpyja compared with Pernis celebensis

Side-by-Side Comparison

Attribute Harpy Eagle Sulawesi Honey-buzzard
Scientific Name Harpia harpyja Pernis celebensis
Order Accipitriformes Accipitriformes
Family Accipitridae Accipitridae
Conservation Status Vulnerable Least Concern
Length 100.0 cm (39.4 in) —
Wingspan 200.0 cm (78.7 in) 70.0 cm (27.6 in)
Weight 7500.0 g (264.55 oz) 722.0 g (25.47 oz)
Diet Arboreal mammals including sloths, monkeys, and opossums, which make up over 70% of the diet. … --
Clutch Size 2-3 2
Population Trend — —

Size Comparison

Body Length
Harpy Eagle 100.0 cm
Sulawesi Honey-buzzard —
Wingspan
Harpy Eagle 200.0 cm
Sulawesi Honey-buzzard 70.0 cm
Weight
Harpy Eagle 7500.0 g
Sulawesi Honey-buzzard 722.0 g

Habitat Comparison

Shared Habitats

Harpy Eagle only

None

Sulawesi Honey-buzzard only

None

Harpy Eagle

Tropical lowland rainforests, requiring large tracts of continuous forest with tall emergent trees for nesting.

Song & Call Comparison

Harpy Eagle

Song

Rarely heard; emits mournful whistled screams 'wheee-oo' and low croaking grunts near the nest. Vocalizations poorly documented given its remote Amazonian habitat.

Sulawesi Honey-buzzard

Geographic Range & Migration

Harpy Eagle

Central and South America from southern Mexico through Brazil and northern Argentina. Range is shrinking due to deforestation.

Sulawesi Honey-buzzard

Conservation Status

Vulnerable

Harpy Eagle

Least Concern

Sulawesi Honey-buzzard

How to Tell Them Apart

Harpy Eagle

Plumage

Slate-black upperparts and head with a pale grey breast and white underparts with black barring. A distinctive split grey crest rises when the bird is alarmed.

Bill

Massive dark hooked bill, one of the largest of any eagle

Sulawesi Honey-buzzard

About These Birds

Harpy Eagle

The harpy eagle is among the most powerful raptors in the world, with talons as large as a grizzly bear's claws. It is the national bird of Panama. Deforestation poses the greatest threat to this species, as each breeding pair requires a vast territory of undisturbed forest.

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