trinta-réis-boreal / gaivina vs Gray-shanked Douc Langur

Sterna hirundo compared with Pygathrix cinerea

Key Differences

trinta-réis-boreal / gaivina is Endangered while Gray-shanked Douc Langur is Critically Endangered.

Taxonomic Classification

Rank	trinta-réis-boreal / gaivina	Gray-shanked Douc Langur
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Aves (ave)	Mammalia (mamíferos)
Order	Charadriiformes (Charadriiformes)	Primates (primatas)
Family	Laridae	Cercopithecidae (Old World Monkeys)
Genus	Sterna	Pygathrix
Species	Sterna hirundo	Pygathrix cinerea

Evolutionary Relationship

trinta-réis-boreal / gaivina and Gray-shanked Douc Langur share a common ancestor at the Phylum level: Chordata. (cordados)

View Phylum: Chordata

Conservation Status

trinta-réis-boreal / gaivina

EN — Endangered

Gray-shanked Douc Langur

CR — Critically Endangered

Physical Characteristics

Attribute	trinta-réis-boreal / gaivina	Gray-shanked Douc Langur
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

trinta-réis-boreal / gaivina

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.

Gray-shanked Douc Langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

trinta-réis-boreal / gaivina

O trinta-réis-comum (Sterna hirundo) está classificado como Em Perigo (EN) na Lista Vermelha da IUCN. Em alto risco de extinção na natureza, com declínio populacional significativo e ameaças contínuas à sobrevivência.