Harmless Serotine vs Long-tailed Jaeger

Eptesicus innoxius compared with Stercorarius longicaudus

Key Differences

• Harmless Serotine is Near Threatened while Long-tailed Jaeger is Least Concern.

Taxonomic Classification

Rank	Harmless Serotine	Long-tailed Jaeger
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Charadriiformes (Charadriiformes)
Family	Vespertilionidae	Stercorariidae
Genus	Eptesicus	Stercorarius
Species	Eptesicus innoxius	Stercorarius longicaudus

Evolutionary Relationship

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

Conservation Status

Harmless Serotine

NT — Near Threatened

Long-tailed Jaeger

LC — Least Concern

Physical Characteristics

Attribute	Harmless Serotine	Long-tailed Jaeger
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Harmless Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Shared Countries

Both species can be found in 1 countries:

🇪🇨 Ecuador