Black-tailed Gull vs Harmless Serotine

Larus crassirostris compared with Eptesicus innoxius

Key Differences

• Black-tailed Gull is Least Concern while Harmless Serotine is Near Threatened.

Taxonomic Classification

Rank	Black-tailed Gull	Harmless Serotine
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Charadriiformes (Charadriiformes)	Chiroptera (Bats)
Family	Laridae	Vespertilionidae
Genus	Larus	Eptesicus
Species	Larus crassirostris	Eptesicus innoxius

Evolutionary Relationship

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

Conservation Status

Black-tailed Gull

LC — Least Concern

Harmless Serotine

NT — Near Threatened

Physical Characteristics

Attribute	Black-tailed Gull	Harmless Serotine
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-tailed Gull

Habitat

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

Range

Distributed across Norway, Taiwan, and United States.

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.

Black-tailed Gull

The Black-tailed Gull (Larus crassirostris) is a species in the genus Larus. It is currently classified as Least Concern on the IUCN Red List. Distributed across Norway, Taiwan, and United States.