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Eastern Rockhopper Penguin vs King Penguin

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

58 cm vs 95 cmVulnerable / Least Concern
Eastern rockhopper penguin on sub-Antarctic rocky coastline

Eastern Rockhopper Penguin

Vulnerable
King penguin with vibrant orange markings

King Penguin

Least Concern

Size Comparison

Eastern Rockhopper Penguin

45-58 cm

2-3.4 kg

King Penguin

85-95 cm

11-16 kg

Conservation Status

Eastern Rockhopper Penguin

Vulnerable

King Penguin

Least Concern

Scientific Name

Eastern Rockhopper Penguin

Eudyptes filholi

King Penguin

Aptenodytes patagonicus

Height

Eastern Rockhopper Penguin

45-58 cm

King Penguin

85-95 cm

Weight

Eastern Rockhopper Penguin

2-3.4 kg

King Penguin

11-16 kg

Lifespan

Eastern Rockhopper Penguin

10-30 years

King Penguin

25-30 years

Population

Eastern Rockhopper Penguin

~1,600,000 pairs

King Penguin

~2,230,000 pairs

Diet

Eastern Rockhopper Penguin

Krill, Squid, Fish, Crustaceans

King Penguin

Lanternfish, Squid, Small crustaceans

Habitat

Eastern Rockhopper Penguin

Rocky coastlines, Cliff faces, Tussock grass

King Penguin

Sub-Antarctic islands, Rocky coastlines

Regions

Eastern Rockhopper Penguin

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

King Penguin

South Georgia, Falkland Islands, Crozet Islands, Kerguelen Islands, Macquarie Island

Genus

Eastern Rockhopper Penguin

Eudyptes

King Penguin

Aptenodytes

About Each Species

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

King Penguin

The second-largest penguin species, King Penguins form some of the largest and densest seabird colonies on Earth, with striking orange and yellow markings and an unusually long 14–16 month breeding cycle.

Learn more about King Penguin

Frequently Asked Questions

Which is bigger, Eastern Rockhopper Penguin or King Penguin?

The King Penguin is larger, standing up to 95cm tall compared to the Eastern Rockhopper Penguin's 58cm.

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

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

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

Eastern Rockhopper Penguins are found in Campbell Island, Antipodes Islands, Crozet Islands, Kerguelen Islands, Heard Island, Macquarie Island. King Penguins are found in South Georgia, Falkland Islands, Crozet Islands, Kerguelen Islands, Macquarie Island.

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