Bigeye thresher vs Glossy Ibis

Alopias pelagicus compared with Plegadis falcinellus

Key Differences

• Bigeye thresher is Endangered while Glossy Ibis is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Glossy Ibis
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Lamniformes (Mackerel Sharks)	Pelecaniformes (Pelecaniformes)
Family	Alopiidae	Threskiornithidae
Genus	Alopias	Plegadis
Species	Alopias pelagicus	Plegadis falcinellus

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

Glossy Ibis

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Glossy Ibis
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.

Glossy Ibis

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (8 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

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.

Glossy Ibis

Glossy Ibis (Plegadis falcinellus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇹🇼 Taiwan