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Emperor Penguin
Penguins · Partial migrant

Emperor Penguin

Imperial Penguin · Aptenodytes forsteri

Near Threatened100–130 cm · 22000–45000 g

By the Birdfact teamChecked byNathan Cope

Standing over 4 feet tall and braving temperatures of -60°C, these remarkable Antarctic giants march up to 75 miles across sea ice to reach their breeding colonies.
On this page12 sections
  1. How to recognise it
  2. Its size
  3. Its song and calls
  4. When and where to see it
  5. What it eats
  6. Nesting and breeding
  7. Behaviour
  8. Conservation
  9. Similar birds
  10. More photos
  11. Quick facts
  12. Sources

How to recognise it

Emperor Penguins are the largest of all penguin species, with a distinctive black and white plumage. They have a black head with white ear patches, a black back, and a white belly. Their flippers are black on the outer side and white underneath.

Both males and females look similar, with bright yellow-orange patches on the sides of their necks. Juveniles have lighter, greyer plumage and lack the vibrant neck patches of adults.

Its size

Adults
Length
100–130 cm
Wingspan
76–89 cm
Weight
22000–45000 g

Its song and calls

Emperor Penguins use a variety of vocalisations for communication. Their most distinctive call is a trumpet-like sound, often described as a loud 'oorr-oorr-oorr'. This call is used for individual recognition between mates and between parents and chicks in the crowded colony.

When and where to see it

The Emperor Penguin is not recorded regularly in the UK, Ireland, the United States or Canada.

Worldwide: recorded regularly in 1 country

Countries where it was recorded in at least 3 of the 6 years 2019–2024. Linked countries have their own bird list.

Antarctica (1)
  • Antarctica

Tips for seeing it

  • Visit Antarctica during the austral summer (November to February) for the best viewing opportunities
  • Look for large colonies on the sea ice near the Antarctic coast
  • Observe from a distance to avoid disturbing breeding pairs and chicks
  • Use binoculars or a spotting scope for detailed views without approaching too closely

What it eats

Emperor Penguins primarily feed on fish, particularly Antarctic silverfish, as well as squid and krill. They are adapted for deep diving, allowing them to forage at great depths.

During the breeding season, they may fast for extended periods, relying on stored body fat for energy.

Nesting and breeding

Emperor Penguins breed during the Antarctic winter, with pair formation occurring in March or April. They are monogamous for the breeding season but often choose new partners each year.

No nest is built; instead, the male incubates a single egg on his feet, covered by a feathered flap of skin called a brood pouch. The egg is laid in May or June and is about 12 cm long.

Incubation lasts about 65 days, during which the male fasts. After hatching, both parents take turns caring for the chick, which fledges after about 150 days.

Behaviour

Emperor Penguins are known for their remarkable endurance, surviving harsh Antarctic winters. They huddle together in large groups to conserve heat, rotating positions to ensure all members benefit from the warmth.

These penguins are excellent swimmers, capable of diving to depths of over 500 meters in search of food.

Conservation

Emperor Penguins face significant threats from climate change, which affects sea ice extent and stability. This impacts their breeding habitats and food availability.

Conservation efforts focus on protecting their breeding grounds and advocating for global climate action to preserve their icy habitat.

Similar birds

Often mistaken for

More photos

9 photos

Quick facts

Length
100–130 cm
Wingspan
76–89 cm
Weight
22000–45000 g
Lifespan
15–20 years · oldest recorded 40 years
Family
Penguins
Migration
Partial migrant
Global status (IUCN)
Near Threatened
World population
512,000 mature individuals
Population trend
Decreasing
Also called
Imperial Penguin
Scientific name
Aptenodytes forsteri

Sources

4
  1. 1BirdLife International. 2020. Aptenodytes forsteri. The IUCN Red List of Threatened Species 2020: e.T22697752A157658053. Source (opens in a new tab)
  2. 2BirdLife International. 2020. Aptenodytes forsteri. The IUCN Red List of Threatened Species 2020: e.T22697752A157658053. Source (opens in a new tab)
  3. 3Trathan et al. (2019)
  4. 4Tony Williams, The Penguins, Oxford University Press (1995)
Spotted a mistake?Tell usHow we write and checkBy the Birdfact team · Updated

Checked by

Nathan Cope, founder and editor

Nathan founded Birdfact and leads its writers and contributors in the UK, the US and Canada. He has watched and studied birds for more than ten years, and checks every article and species guide before it’s published.

How we write and checkAbout Nathan