Irrawaddy dolphin vs Long-tailed Jaeger

Orcaella brevirostris compared with Stercorarius longicaudus

Key Differences

• Irrawaddy dolphin is Endangered while Long-tailed Jaeger is Least Concern.

Taxonomic Classification

Rank	Irrawaddy dolphin	Long-tailed Jaeger
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Charadriiformes (Charadriiformes)
Family	Delphinidae (Oceanic Dolphins)	Stercorariidae
Genus	Orcaella	Stercorarius
Species	Orcaella brevirostris	Stercorarius longicaudus

Evolutionary Relationship

Irrawaddy dolphin and Long-tailed Jaeger share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Irrawaddy dolphin

EN — Endangered

Long-tailed Jaeger

LC — Least Concern

Physical Characteristics

Attribute	Irrawaddy dolphin	Long-tailed Jaeger
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Long-tailed Jaeger

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Long-tailed Jaeger

Long-tailed Jaeger (Stercorarius longicaudus) 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.