Chestnut-breasted Cuckoo vs Emperor Penguin

Cacomantis castaneiventris compared with Aptenodytes forsteri

Key Differences

• Chestnut-breasted Cuckoo is Least Concern while Emperor Penguin is Near Threatened.

Taxonomic Classification

Rank	Chestnut-breasted Cuckoo	Emperor Penguin
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class same	Aves (kuş)	Aves (kuş)
Order	Cuculiformes (Guguksular)	Sphenisciformes (Penguins)
Family	Cuculidae	Spheniscidae (Penguins)
Genus	Cacomantis	Aptenodytes (Great Penguins)
Species	Cacomantis castaneiventris	Aptenodytes forsteri

Evolutionary Relationship

Chestnut-breasted Cuckoo and Emperor Penguin share a common ancestor at the Class level: Aves. (kuş)

Conservation Status

Chestnut-breasted Cuckoo

LC — Least Concern

Emperor Penguin

NT — Near Threatened

Population: ~595.0K

Trend: Stable →

Physical Characteristics

Attribute	Chestnut-breasted Cuckoo	Emperor Penguin
Diet	—	Carnivore
Average Lifespan	—	20 years
Average Length	—	1.1 m
Average Weight	—	40.0 kg

Habitat & Geographic Range

Chestnut-breasted Cuckoo

Habitat

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

Range

Found in Norway.

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.

Chestnut-breasted Cuckoo

The Chestnut-breasted Cuckoo (Cacomantis castaneiventris) is a species in the genus Cacomantis. It is currently classified as Least Concern 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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway