trinta-réis-boreal / gaivina vs Neotropical otter

Sterna hirundo compared with Lontra longicaudis

Key Differences

• trinta-réis-boreal / gaivina is Endangered while Neotropical otter is Data Deficient.

Taxonomic Classification

Rank	trinta-réis-boreal / gaivina	Neotropical otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Aves (ave)	Mammalia (mamíferos)
Order	Charadriiformes (Charadriiformes)	Carnivora (carnívoros)
Family	Laridae	Mustelidae (Weasels & Otters)
Genus	Sterna	Lontra
Species	Sterna hirundo	Lontra longicaudis

Evolutionary Relationship

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

Conservation Status

trinta-réis-boreal / gaivina

EN — Endangered

Neotropical otter

DD — Data Deficient

Physical Characteristics

Attribute	trinta-réis-boreal / gaivina	Neotropical otter
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.

Neotropical otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇻🇪 Venezuela