Azure Roller vs Bigeye thresher

Eurystomus azureus compared with Alopias pelagicus

Key Differences

• Azure Roller is Near Threatened while Bigeye thresher is Endangered.

Taxonomic Classification

Rank	Azure Roller	Bigeye thresher
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Chondrichthyes (Cartilaginous Fish)
Order	Coraciiformes (Coraciiformes)	Lamniformes (Mackerel Sharks)
Family	Coraciidae	Alopiidae
Genus	Eurystomus	Alopias
Species	Eurystomus azureus	Alopias pelagicus

Evolutionary Relationship

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

Conservation Status

Azure Roller

NT — Near Threatened

Bigeye thresher

EN — Endangered

Physical Characteristics

Attribute	Azure Roller	Bigeye thresher
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Azure Roller

Habitat

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

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Azure Roller

The Azure Roller (Eurystomus azureus) is a species in the genus Eurystomus. It is currently classified as Near Threatened 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.