Sterne pierregarin vs Opossum-souris gris

Sterna hirundo compared with Marmosops incanus

Key Differences

• Sterne pierregarin is Endangered while Opossum-souris gris is Least Concern.

Taxonomic Classification

Rank	Sterne pierregarin	Opossum-souris gris
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (oiseau)	Mammalia (mammifères)
Order	Charadriiformes (Charadriiformes)	Didelphimorphia (Didelphimorphia)
Family	Laridae	Didelphidae
Genus	Sterna	Marmosops
Species	Sterna hirundo	Marmosops incanus

Evolutionary Relationship

Sterne pierregarin and Opossum-souris gris share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Sterne pierregarin

EN — Endangered

Opossum-souris gris

LC — Least Concern

Physical Characteristics

Attribute	Sterne pierregarin	Opossum-souris gris
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Sterne pierregarin

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.

Opossum-souris gris

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Sterne pierregarin

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.