European Roller vs Harpy Eagle

Coracias garrulus compared with Harpia harpyja

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Side-by-Side Comparison

Attribute European Roller Harpy Eagle
Scientific Name Coracias garrulus Harpia harpyja
Order Coraciiformes Accipitriformes
Family Coraciidae Accipitridae
Conservation Status Least Concern Vulnerable
Length 31.0 cm (12.2 in) 100.0 cm (39.4 in)
Wingspan 66.0 cm (26.0 in) 200.0 cm (78.7 in)
Weight 130.0 g (4.59 oz) 7500.0 g (264.55 oz)
Diet Large insects, especially beetles, grasshoppers, and crickets. Also takes small reptiles, frogs, and scorpions. Hunts … Arboreal mammals including sloths, monkeys, and opossums, which make up over 70% of the diet. …
Clutch Size 3-6 2-3
Population Trend
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Size Comparison

Body Length
European Roller 31.0 cm
Harpy Eagle 100.0 cm
Wingspan
European Roller 66.0 cm
Harpy Eagle 200.0 cm
Weight
European Roller 130.0 g
Harpy Eagle 7500.0 g
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Habitat Comparison

Shared Habitats

European Roller only

None

Harpy Eagle only

None

European Roller

Warm, dry, open country with scattered trees and nest holes. Breeds in tree cavities, earth banks, and nest boxes.

Harpy Eagle

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

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Song & Call Comparison

European Roller

Song

A harsh, grating 'rack-rack' or 'quarrk' in flight. Gives a variety of sharp nasal calls at the nest. Not melodic; primary vocalizations are alarm and contact calls.

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.

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Geographic Range & Migration

European Roller

Southern and eastern Europe, Central Asia, and North Africa. Winters in sub-Saharan Africa.

Harpy Eagle

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

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Conservation Status

Least Concern

European Roller

Vulnerable

Harpy Eagle

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How to Tell Them Apart

European Roller

Plumage

Turquoise-blue head, breast, and tail. Chestnut-brown back. Vivid ultramarine blue and black wing patches visible in flight.

Bill

Short, stout, dark hooked bill

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

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About These Birds

European Roller

The European roller gets its name from the spectacular rolling and tumbling aerial displays performed by males during courtship. It is the only roller species in Europe and one of the continent's most colorful birds. Declining across much of its western range due to agricultural intensification and habitat loss.

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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