Andean Gull vs Bigeye thresher

Chroicocephalus serranus compared with Alopias pelagicus

Key Differences

• Andean Gull is Least Concern while Bigeye thresher is Endangered.

Taxonomic Classification

Rank	Andean Gull	Bigeye thresher
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Chondrichthyes (Cartilaginous Fish)
Order	Charadriiformes (Charadriiformes)	Lamniformes (Mackerel Sharks)
Family	Laridae	Alopiidae
Genus	Chroicocephalus	Alopias
Species	Chroicocephalus serranus	Alopias pelagicus

Evolutionary Relationship

Andean Gull and Bigeye thresher share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Andean Gull

LC — Least Concern

Bigeye thresher

EN — Endangered

Physical Characteristics

Attribute	Andean Gull	Bigeye thresher
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Andean Gull

Habitat

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

Range

Distributed across Colombia, Ecuador, and Norway.

Bigeye thresher

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Colombia and Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Andean Gull

The Andean Gull (Chroicocephalus serranus) is a species in the genus Chroicocephalus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Bigeye thresher

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Shared Countries

Both species can be found in 1 countries:

🇨🇴 Colombia