trinta-réis-boreal / gaivina vs Eld's Deer

Sterna hirundo compared with Rucervus eldii

Taxonomic Classification

Rank	trinta-réis-boreal / gaivina	Eld's Deer
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Aves (ave)	Mammalia (mamíferos)
Order	Charadriiformes (Charadriiformes)	Artiodactyla (Artiodátilos)
Family	Laridae	Cervidae (Deer)
Genus	Sterna	Rucervus
Species	Sterna hirundo	Rucervus eldii

Evolutionary Relationship

trinta-réis-boreal / gaivina and Eld's Deer share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

trinta-réis-boreal / gaivina

EN — Endangered

Eld's Deer

EN — Endangered

Physical Characteristics

Attribute	trinta-réis-boreal / gaivina	Eld's Deer
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.

Eld's Deer

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.