trinta-réis-boreal / gaivina vs Equatorial Saki

Sterna hirundo compared with Pithecia aequatorialis

Key Differences

trinta-réis-boreal / gaivina is Endangered while Equatorial Saki is Least Concern.

Taxonomic Classification

Rank	trinta-réis-boreal / gaivina	Equatorial Saki
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Aves (ave)	Mammalia (mamíferos)
Order	Charadriiformes (Charadriiformes)	Primates (primatas)
Family	Laridae	Pitheciidae
Genus	Sterna	Pithecia
Species	Sterna hirundo	Pithecia aequatorialis

Evolutionary Relationship

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

View Phylum: Chordata

Conservation Status

trinta-réis-boreal / gaivina

EN — Endangered

Equatorial Saki

LC — Least Concern

Physical Characteristics

Attribute	trinta-réis-boreal / gaivina	Equatorial Saki
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.

Equatorial Saki

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.

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.