Chatham shag vs Emperor Penguin

Leucocarbo onslowi compared with Aptenodytes forsteri

Key Differences

• Chatham shag is Critically Endangered while Emperor Penguin is Near Threatened.

Taxonomic Classification

Rank	Chatham shag	Emperor Penguin
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class same	Aves (kuş)	Aves (kuş)
Order	Suliformes (Suliformes)	Sphenisciformes (Penguins)
Family	Phalacrocoracidae	Spheniscidae (Penguins)
Genus	Leucocarbo	Aptenodytes (Great Penguins)
Species	Leucocarbo onslowi	Aptenodytes forsteri

Evolutionary Relationship

Chatham shag and Emperor Penguin share a common ancestor at the Class level: Aves. (kuş)

Conservation Status

Chatham shag

CR — Critically Endangered

Emperor Penguin

NT — Near Threatened

Population: ~595.0K

Trend: Stable →

Physical Characteristics

Attribute	Chatham shag	Emperor Penguin
Diet	—	Carnivore
Average Lifespan	—	20 years
Average Length	—	1.1 m
Average Weight	—	40.0 kg

Habitat & Geographic Range

Chatham shag

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Emperor Penguin

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Chatham shag

The Chatham shag (Leucocarbo onslowi) is a species in the genus Leucocarbo. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Emperor Penguin

The world's largest penguin, emperor penguins stand up to 1.2 meters and weigh 45 kg, inhabiting the Antarctic continent in some of the most extreme conditions on Earth. They breed in midwinter darkness at temperatures below -60°C, with males incubating single eggs on their feet under a brood pouch for 65 days while females are at sea. Their huddling behavior — cycling individuals through the warm center of thousands-strong groups — is a masterclass in cooperative survival.