Harmless Serotine vs Lesser Crested Tern

Eptesicus innoxius compared with Thalasseus bengalensis

Key Differences

• Harmless Serotine is Near Threatened while Lesser Crested Tern is Not Evaluated.

Taxonomic Classification

Rank	Harmless Serotine	Lesser Crested Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Charadriiformes (Charadriiformes)
Family	Vespertilionidae	Laridae
Genus	Eptesicus	Thalasseus
Species	Eptesicus innoxius	Thalasseus bengalensis

Evolutionary Relationship

Harmless Serotine and Lesser Crested Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Harmless Serotine

NT — Near Threatened

Lesser Crested Tern

NE — Not Evaluated

Physical Characteristics

Attribute	Harmless Serotine	Lesser Crested Tern
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.

Lesser Crested Tern

Habitat

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

Range

Distributed across Norway and Sweden.