River Tern vs Yellow-billed Cacique

Sterna aurantia compared with Amblycercus holosericeus

Key Differences

• River Tern is Vulnerable while Yellow-billed Cacique is Least Concern.

Taxonomic Classification

Rank	River Tern	Yellow-billed Cacique
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Charadriiformes (Charadriiformes)	Passeriformes (Songbirds)
Family	Laridae	Icteridae
Genus	Sterna	Amblycercus
Species	Sterna aurantia	Amblycercus holosericeus

Evolutionary Relationship

River Tern and Yellow-billed Cacique share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

River Tern

VU — Vulnerable

Yellow-billed Cacique

LC — Least Concern

Physical Characteristics

Attribute	River Tern	Yellow-billed Cacique
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

River Tern

Habitat

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

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Yellow-billed Cacique

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Yellow-billed Cacique

Yellow-billed Cacique (Amblycercus holosericeus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway