Adelie Penguin | Oceana
Home / Adelie Penguin

Marine Life Encyclopedia

Seabirds

Adelie Penguin

Pygoscelis adeliae

Distribution

Circumpolar around Antarctica

ECOSYSTEM/HABITAT

Nest on cobble beaches; feed in Antarctic currents

FEEDING HABITS

Foraging predator

TAXONOMY

Order Sphenisciformes (penguins), Family Spheniscidae (penguins)

Though Adélie penguins live mostly on the continent of Antarctica (and a few associated islands), they mate and nest on rocky shores, rather than on the ice. Both parents take turns caring for a clutch of two eggs that are laid in a stone nest. While one parent incubates the eggs, the other parent feeds. Adelie penguins are foraging predators that will take many different prey items, but their preferred food source is krill. Their reliance on this particular prey source, however, is a relatively recent phenomenon that seems to align with the decline of other krill predators (e.g., fur seals and baleen whales) as a result of overhunting. Regardless, the Adélie penguin’s current diet consistently includes several krill species. When individuals are not nesting, they are known to undergo long, winter migrations in search of food, staying close to the expanding ice edge and using the ice to rest.

One interesting behavior of the Adélie penguin is its reluctance to be the first individual that enters the water. This species is known to form dense groups at the water’s edge waiting for an individual to either fall or be pushed into the water. Only after that first individual is seen safely swimming away to feed do the others in the group follow. This behavior is thought to be used to avoid predation by leopard seals, killer whales, and other large animals. Adélie penguins have no natural land predators and are extremely curious about people. They often walk right up to researchers as if conducting their own studies.

The Adélie penguin is the subject of numerous scientific studies and is generally considered to be one of the best studied penguins. Researchers have been studying Adélie penguin behavior for many decades. Unfortunately, continuing expansion of research facilities reduces nesting area, potentially contributing to this species’ status as near threatened with extinction. Though population trends are currently positive, scientists worry that overfishing of Southern Ocean krill and other prey species may threaten the Adelaide Penguin’s ability to maintain stable populations. Furthermore, even though this species does not reproduce on the ice surface, researchers predict that climate change will negatively affect the Southern Ocean food web, possibly counteracting any positive influence on Adelaide Penguin nesting areas that ice retreat may provide. Finally, this species spends much of the year in the Ross Sea and would undoubtedly benefit from adoption of the proposed marine protected area in that region that is currently being considered by world governments who have an interest in Antarctica.

Engage Youth with Sailors for the Sea

Oceana joined forces with Sailors for the Sea, an ocean conservation organization dedicated to educating and engaging the world’s boating community. Sailors for the Sea developed the KELP (Kids Environmental Lesson Plans) program to create the next generation of ocean stewards. Click here or below to download hands-on marine science activities for kids.

Kids Environmental Lesson Plans

Additional Resources:

IUCN Red List

Get Involved

Donate Today

SUPPORT OUR WORK TO PROTECT THE OCEANS BY GIVING TODAY

With the support of more than 1 million activists like you, we have already protected nearly 4 million square miles of ocean.

Donate Now

TAKE ACTION NOW

Support policy change for the oceans

Decision-makers need to hear from ocean lovers like you. Make your voice heard!

Sign Now

VISIT OUR ADOPTION CENTER

SYMBOLICALLY ADOPT AN ANIMAL TODAY

Visit our online store to see all the ocean animals you can symbolically adopt, either for yourself or as a gift for someone else.

Shop Today

DOWNLOAD OCEAN ACTIVITIES

HELP KIDS DISCOVER OUR BLUE PLANET

Our free KELP (Kids Environmental Lesson Plans) empower children to learn about and protect our oceans!

Learn More

FEATURED CAMPAIGN

Save the Oceans, Feed the World

We are restoring the world’s wild fish populations to serve as a sustainable source of protein for people.

Learn More

More Campaigns

Protect Habitat

Bycatch

Plastics

View All

CONTACT

Oceana International Headquarters
1025 Connecticut Avenue, Suite 200
Washington, DC 20036 USA

General Inquiries
+1(202)-833-3900
info@oceana.org

Donation Inquiries
+1(202)-996-7174
wavemaker@oceana.org

Press Inquiries
+1(202)-833-3900
press@oceana.org

OCEANA'S EFFICIENCY

BECOME A WAVEMAKER

Sign up today to get weekly updates and action alerts from Oceana.

SHOW YOUR SUPPORT WITH A DONATION

We have already protected nearly 4 million square miles of ocean and innumerable sea life - but there is still more to be done.

Donate Now

QUICK LINKS: