Campainhas-do-outono vs trinta-réis-boreal / gaivina

Acis autumnalis compared with Sterna hirundo

Key Differences

Campainhas-do-outono is Least Concern while trinta-réis-boreal / gaivina is Endangered.

Taxonomic Classification

Rank	Campainhas-do-outono	trinta-réis-boreal / gaivina
Kingdom	Plantae (plantas)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (cordados)
Class	Liliopsida (Monocots)	Aves (ave)
Order	Asparagales (Asparagales)	Charadriiformes (Charadriiformes)
Family	Amaryllidaceae	Laridae
Genus	Acis	Sterna
Species	Acis autumnalis	Sterna hirundo

Conservation Status

Campainhas-do-outono

LC — Least Concern

trinta-réis-boreal / gaivina

EN — Endangered

Physical Characteristics

Attribute	Campainhas-do-outono	trinta-réis-boreal / gaivina
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Campainhas-do-outono

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Found in Norway.

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.

Campainhas-do-outono

The Autumn Snowflake (Acis autumnalis) is a species in the genus Acis. It is currently classified as Least Concern on the IUCN Red List. Typically found in grasslands, wetlands, forests, and cultivated landscapes.

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.