trinta-réis-boreal / gaivina vs perdiz-grega

Sterna hirundo compared with Alectoris graeca

Key Differences

• trinta-réis-boreal / gaivina is Endangered while perdiz-grega is Near Threatened.

Taxonomic Classification

Rank	trinta-réis-boreal / gaivina	perdiz-grega
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Aves (ave)	Aves (ave)
Order	Charadriiformes (Charadriiformes)	Galliformes (Galliformes)
Family	Laridae	Phasianidae
Genus	Sterna	Alectoris
Species	Sterna hirundo	Alectoris graeca

Evolutionary Relationship

trinta-réis-boreal / gaivina and perdiz-grega share a common ancestor at the Class level: Aves. (ave)

Conservation Status

trinta-réis-boreal / gaivina

EN — Endangered

perdiz-grega

NT — Near Threatened

Physical Characteristics

Attribute	trinta-réis-boreal / gaivina	perdiz-grega
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.

perdiz-grega

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (8 countries). 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.

perdiz-grega

A perdiz-griega (Alectoris graeca) esta classificada como Quase Ameacada (NT) na Lista Vermelha da UICN. Proxima de se qualificar como ameacada, com populacoes que podem se tornar vulneraveis sem medidas de conservacao.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway