Bigeye thresher vs Seeadler

Alopias pelagicus compared with Haliaeetus albicilla

Key Differences

• Bigeye thresher is Endangered while Seeadler is Near Threatened.

Taxonomic Classification

Rank	Bigeye thresher	Seeadler
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Chondrichthyes (Knorpelfische)	Aves (Vögel)
Order	Lamniformes (Makrelenhaiartige)	Accipitriformes (Greifvögel)
Family	Alopiidae	Accipitridae (Hawks & Eagles)
Genus	Alopias	Haliaeetus (Sea Eagles)
Species	Alopias pelagicus	Haliaeetus albicilla

Evolutionary Relationship

Bigeye thresher and Seeadler share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Bigeye thresher

EN — Endangered

Seeadler

NT — Near Threatened

Physical Characteristics

Attribute	Bigeye thresher	Seeadler
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.

Seeadler

Habitat

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

Range

Found across Asia (Taiwan) and Europe (6 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Seeadler

White-tailed Eagle (Haliaeetus albicilla) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 1 countries:

🇹🇼 Taiwan