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Adelie Penguin vs Eastern Rockhopper Penguin

A side-by-side comparison of the Adelie Penguin and Eastern Rockhopper Penguin, covering size, weight, habitat, diet, conservation status, and lifespan.

71 cm vs 58 cmLeast Concern / Vulnerable
Adelie penguin on rocky Antarctic shore

Adelie Penguin

Least Concern
Eastern rockhopper penguin on sub-Antarctic rocky coastline

Eastern Rockhopper Penguin

Vulnerable

Size Comparison

Adelie Penguin

46-71 cm

3.6-6 kg

Eastern Rockhopper Penguin

45-58 cm

2-3.4 kg

Conservation Status

Adelie Penguin

Least Concern

Eastern Rockhopper Penguin

Vulnerable

Scientific Name

Adelie Penguin

Pygoscelis adeliae

Eastern Rockhopper Penguin

Eudyptes filholi

Height

Adelie Penguin

46-71 cm

Eastern Rockhopper Penguin

45-58 cm

Weight

Adelie Penguin

3.6-6 kg

Eastern Rockhopper Penguin

2-3.4 kg

Lifespan

Adelie Penguin

10-20 years

Eastern Rockhopper Penguin

10-30 years

Population

Adelie Penguin

~7,580,000 pairs

Eastern Rockhopper Penguin

~1,600,000 pairs

Diet

Adelie Penguin

Krill, Fish, Squid

Eastern Rockhopper Penguin

Krill, Squid, Fish, Crustaceans

Habitat

Adelie Penguin

Antarctic coastline, Rocky shores

Eastern Rockhopper Penguin

Rocky coastlines, Cliff faces, Tussock grass

Regions

Adelie Penguin

Antarctica, South Shetland Islands, South Orkney Islands

Eastern Rockhopper Penguin

Campbell Island, Antipodes Islands, Crozet Islands, Kerguelen Islands, Heard Island, Macquarie Island

Genus

Adelie Penguin

Pygoscelis

Eastern Rockhopper Penguin

Eudyptes

About Each Species

Adelie Penguin

Small, highly abundant Antarctic penguins recognized by their distinctive white eye rings. Adélies are one of only two penguin species on the Antarctic mainland and serve as key indicator species for ecosystem health.

Learn more about Adelie Penguin

Eastern Rockhopper Penguin

Recognized as a distinct species from the Western Rockhopper since 2006, Eastern Rockhoppers breed on sub-Antarctic islands in the Indian and Pacific Oceans and share the same bold yellow crest and red eyes as their relatives.

Learn more about Eastern Rockhopper Penguin

Frequently Asked Questions

Which is bigger, Adelie Penguin or Eastern Rockhopper Penguin?

The Adelie Penguin is larger, standing up to 71cm tall compared to the Eastern Rockhopper Penguin's 58cm.

Which is more endangered, Adelie Penguin or Eastern Rockhopper Penguin?

The Adelie Penguin is classified as "Least Concern" while the Eastern Rockhopper Penguin is "Vulnerable".

Do Adelie Penguins and Eastern Rockhopper Penguins live in the same area?

Adelie Penguins are found in Antarctica, South Shetland Islands, South Orkney Islands. Eastern Rockhopper Penguins are found in Campbell Island, Antipodes Islands, Crozet Islands, Kerguelen Islands, Heard Island, Macquarie Island.

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