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King Penguin vs Northern Rockhopper Penguin

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

95 cm vs 58 cmLeast Concern / Endangered
King penguin with vibrant orange markings

King Penguin

Least Concern
Northern rockhopper penguin on remote island cliff

Northern Rockhopper Penguin

Endangered

Size Comparison

King Penguin

85-95 cm

11-16 kg

Northern Rockhopper Penguin

45-58 cm

2-3.4 kg

Conservation Status

King Penguin

Least Concern

Northern Rockhopper Penguin

Endangered

Scientific Name

King Penguin

Aptenodytes patagonicus

Northern Rockhopper Penguin

Eudyptes moseleyi

Height

King Penguin

85-95 cm

Northern Rockhopper Penguin

45-58 cm

Weight

King Penguin

11-16 kg

Northern Rockhopper Penguin

2-3.4 kg

Lifespan

King Penguin

25-30 years

Northern Rockhopper Penguin

10-30 years

Population

King Penguin

~2,230,000 pairs

Northern Rockhopper Penguin

~240,300 pairs

Diet

King Penguin

Lanternfish, Squid, Small crustaceans

Northern Rockhopper Penguin

Krill, Squid, Fish, Crustaceans

Habitat

King Penguin

Sub-Antarctic islands, Rocky coastlines

Northern Rockhopper Penguin

Rocky coastlines, Cliff faces, Tussock grass

Regions

King Penguin

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

Northern Rockhopper Penguin

Tristan da Cunha, Gough Island, Amsterdam Island, St. Paul Island

Genus

King Penguin

Aptenodytes

Northern Rockhopper Penguin

Eudyptes

About Each Species

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

Northern Rockhopper Penguin

Only recognized as a separate species from the Southern Rockhopper in 2006, Northern Rockhoppers have longer, more luxuriant crest feathers and have suffered a devastating ~90% population decline over the past century.

Learn more about Northern Rockhopper Penguin

Frequently Asked Questions

Which is bigger, King Penguin or Northern Rockhopper Penguin?

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

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

The King Penguin is classified as "Least Concern" while the Northern Rockhopper Penguin is "Endangered".

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

King Penguins are found in South Georgia, Falkland Islands, Crozet Islands, Kerguelen Islands, Macquarie Island. Northern Rockhopper Penguins are found in Tristan da Cunha, Gough Island, Amsterdam Island, St. Paul Island.

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