trinta-réis-boreal / gaivina vs mainato-de-poupa

Sterna hirundo compared with Acridotheres cristatellus

Key Differences

• trinta-réis-boreal / gaivina is Endangered while mainato-de-poupa is Least Concern.

Taxonomic Classification

Rank	trinta-réis-boreal / gaivina	mainato-de-poupa
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Aves (ave)	Aves (ave)
Order	Charadriiformes (Charadriiformes)	Passeriformes (Songbirds)
Family	Laridae	Sturnidae
Genus	Sterna	Acridotheres
Species	Sterna hirundo	Acridotheres cristatellus

Evolutionary Relationship

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

Conservation Status

trinta-réis-boreal / gaivina

EN — Endangered

mainato-de-poupa

LC — Least Concern

Physical Characteristics

Attribute	trinta-réis-boreal / gaivina	mainato-de-poupa
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.

mainato-de-poupa

Habitat

Inhabits tropical and subtropical dry broadleaf forests and tropical and subtropical grasslands and savannas within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan, Singapore, United Arab Emirates), Europe (7 countries), and South America (Argentina, Bolivia).

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.

mainato-de-poupa

O mainato-crestado (Acridotheres cristatellus) está classificado como Pouco Preocupante (LC) na Lista Vermelha da UICN. Amplamente distribuído e abundante na sua área de ocorrência, com populações estáveis e sem preocupações de conservação imediatas.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇵🇹 Portugal