Azara's night monkey vs Sterne pierregarin

Aotus azarae compared with Sterna hirundo

Key Differences

• Azara's night monkey is Least Concern while Sterne pierregarin is Endangered.

Taxonomic Classification

Rank	Azara's night monkey	Sterne pierregarin
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (mammifères)	Aves (oiseau)
Order	Primates (Primates)	Charadriiformes (Charadriiformes)
Family	Aotidae	Laridae
Genus	Aotus	Sterna
Species	Aotus azarae	Sterna hirundo

Evolutionary Relationship

Azara's night monkey and Sterne pierregarin share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Azara's night monkey

LC — Least Concern

Sterne pierregarin

EN — Endangered

Physical Characteristics

Attribute	Azara's night monkey	Sterne pierregarin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Azara's night monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Sterne pierregarin

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.

Azara's night monkey

The Azara's night monkey (Aotus azarae) is a species in the genus Aotus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Sterne pierregarin

Common Tern (Sterna hirundo) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.