trinta-réis-boreal / gaivina vs cigarrinha-do-campo

Sterna hirundo compared with Ammodramus aurifrons

Key Differences

• trinta-réis-boreal / gaivina is Endangered while cigarrinha-do-campo is Least Concern.

Taxonomic Classification

Rank	trinta-réis-boreal / gaivina	cigarrinha-do-campo
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	Passerellidae
Genus	Sterna	Ammodramus
Species	Sterna hirundo	Ammodramus aurifrons

Evolutionary Relationship

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

Conservation Status

trinta-réis-boreal / gaivina

EN — Endangered

cigarrinha-do-campo

LC — Least Concern

Physical Characteristics

Attribute	trinta-réis-boreal / gaivina	cigarrinha-do-campo
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.

cigarrinha-do-campo

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, 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.

cigarrinha-do-campo

O pardal-de-sobrancelha-amarela (Ammodramus aurifrons) está classificado como Pouco Preocupante (LC) na Lista Vermelha da IUCN. É um pequeno passeriforme que habita pastagens, prados e arrozais das bacias Amazônica e do Orinoco na América do Sul, com ampla distribuição e população estável.

Shared Countries

Both species can be found in 4 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇳🇴 Norway 🇻🇪 Venezuela