Harpy Eagle vs Steller's Sea Eagle
How does the Harpy Eagle compare to the Steller's Sea Eagle? They are both members of the Accipitridae family. Below we put their classification, habitat, diet, size, and conservation status side by side — and settle who would win in a fight.


Side-by-side comparison
- Scientific name
- Harpia harpyja
- Haliaeetus pelagicus
- Classification
- Bird
- Bird
- Family
- Accipitridae
- Accipitridae
- Habitat
- Tropical rainforest
- Coastal forests and river mouths
- Diet
- Carnivore
- Carnivore
- Conservation status
- Near Threatened
- Vulnerable
- Lifespan
- 25-35 years
- 20-25 years
- Weight
- 6-10 kg (13-22 lbs)
- 6.8-9 kg
Harpy Eagle vs Steller's Sea Eagle: who would win?

Harpy Eagle
6-10 kg (13-22 lbs)

Steller's Sea Eagle
6.8-9 kg
Too close to call speculative confidence
Harpy Eagle and Steller's Sea Eagle are closely matched on both size (6-10 kg (13-22 lbs) vs 6.8-9 kg) and diet, so the outcome would come down to circumstance. In the wild these two rarely (if ever) meet — this is a what-if based on the size and diet we have on record, not a prediction.
Similarities
- Both are birds.
- Both belong to the Accipitridae family.
- Both have a carnivore diet.
Differences
- Habitat: Tropical rainforest vs Coastal forests and river mouths.
- Conservation: Near Threatened vs Vulnerable.
- Weight: 6-10 kg (13-22 lbs) vs 6.8-9 kg.
Harpy Eagle vs Steller's Sea Eagle: FAQ
Who would win in a fight, a Harpy Eagle or a Steller's Sea Eagle?
Too close to call. Harpy Eagle and Steller's Sea Eagle are closely matched on both size (6-10 kg (13-22 lbs) vs 6.8-9 kg) and diet, so the outcome would come down to circumstance. In the wild these two rarely (if ever) meet — this is a what-if based on the size and diet we have on record, not a prediction.
What is the difference between a Harpy Eagle and a Steller's Sea Eagle?
Harpy Eagle and Steller's Sea Eagle differ in several ways — habitat: tropical rainforest vs coastal forests and river mouths. conservation: near threatened vs vulnerable. weight: 6-10 kg (13-22 lbs) vs 6.8-9 kg.
Do Harpy Eagle and Steller's Sea Eagle live in the same habitat?
No — Harpy Eagle lives in tropical rainforest, while Steller's Sea Eagle is found in coastal forests and river mouths.
What do Harpy Eagle and Steller's Sea Eagle eat?
Both Harpy Eagle and Steller's Sea Eagle have a carnivore diet.
Which is more endangered, the Harpy Eagle or the Steller's Sea Eagle?
Harpy Eagle is listed as Near Threatened, while Steller's Sea Eagle is listed as Vulnerable.
How big are Harpy Eagle and Steller's Sea Eagle?
Harpy Eagle weighs around 6-10 kg (13-22 lbs), while Steller's Sea Eagle weighs around 6.8-9 kg.

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Harpy Eagle

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Steller's Sea Eagle







