Bigeye thresher vs Chestnut-flanked Sparrowhawk

Alopias pelagicus compared with Accipiter castanilius

Key Differences

• Bigeye thresher is Endangered while Chestnut-flanked Sparrowhawk is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Chestnut-flanked Sparrowhawk
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Lamniformes (Mackerel Sharks)	Accipitriformes (Hawks & Eagles)
Family	Alopiidae	Accipitridae (Hawks & Eagles)
Genus	Alopias	Accipiter
Species	Alopias pelagicus	Accipiter castanilius

Evolutionary Relationship

Bigeye thresher and Chestnut-flanked Sparrowhawk share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Chestnut-flanked Sparrowhawk

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Chestnut-flanked Sparrowhawk
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Chestnut-flanked Sparrowhawk

Habitat

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

Range

Found in Norway.

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.

Chestnut-flanked Sparrowhawk

The Chestnut-flanked Sparrowhawk (Accipiter castanilius) is a species in the genus Accipiter. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.