trinta-réis-boreal / gaivina vs Macaco-de-cheiro

Sterna hirundo compared with Saimiri cassiquiarensis

Key Differences

trinta-réis-boreal / gaivina is Endangered while Macaco-de-cheiro is Near Threatened.

Taxonomic Classification

Rank	trinta-réis-boreal / gaivina	Macaco-de-cheiro
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Aves (ave)	Mammalia (mamíferos)
Order	Charadriiformes (Charadriiformes)	Primates (primatas)
Family	Laridae	Cebidae
Genus	Sterna	Saimiri
Species	Sterna hirundo	Saimiri cassiquiarensis

Evolutionary Relationship

trinta-réis-boreal / gaivina and Macaco-de-cheiro share a common ancestor at the Phylum level: Chordata. (cordados)

View Phylum: Chordata

Conservation Status

trinta-réis-boreal / gaivina

EN — Endangered

Macaco-de-cheiro

NT — Near Threatened

Physical Characteristics

Attribute	trinta-réis-boreal / gaivina	Macaco-de-cheiro
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.

Macaco-de-cheiro

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.