Chestnut-headed Crake vs Common Tern

Anurolimnas castaneiceps compared with Sterna hirundo

Key Differences

• Chestnut-headed Crake is Least Concern while Common Tern is Endangered.

Taxonomic Classification

Rank	Chestnut-headed Crake	Common Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Gruiformes (Gruiformes)	Charadriiformes (Charadriiformes)
Family	Rallidae	Laridae
Genus	Anurolimnas	Sterna
Species	Anurolimnas castaneiceps	Sterna hirundo

Evolutionary Relationship

Chestnut-headed Crake and Common Tern share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Chestnut-headed Crake

LC — Least Concern

Common Tern

EN — Endangered

Physical Characteristics

Attribute	Chestnut-headed Crake	Common Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut-headed Crake

Habitat

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

Range

Distributed across Colombia, Ecuador, and Norway.

Common Tern

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 9 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Chestnut-headed Crake

The Chestnut-headed Crake (Anurolimnas castaneiceps) is a species in the genus Anurolimnas. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Common Tern

Common Tern (Sterna hirundo) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇳🇴 Norway