Alexander's Swift vs Bigeye thresher

Apus alexandri compared with Alopias pelagicus

Key Differences

• Alexander's Swift is Least Concern while Bigeye thresher is Endangered.

Taxonomic Classification

Rank	Alexander's Swift	Bigeye thresher
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Chondrichthyes (Cartilaginous Fish)
Order	Apodiformes (Apodiformes)	Lamniformes (Mackerel Sharks)
Family	Apodidae	Alopiidae
Genus	Apus	Alopias
Species	Apus alexandri	Alopias pelagicus

Evolutionary Relationship

Alexander's Swift and Bigeye thresher share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Alexander's Swift

LC — Least Concern

Bigeye thresher

EN — Endangered

Physical Characteristics

Attribute	Alexander's Swift	Bigeye thresher
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alexander's Swift

Habitat

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

Range

Found in 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.

Alexander's Swift

The Alexander's Swift (Apus alexandri) is a species in the genus Apus. 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.