Gray-backed Tern vs Harmless Serotine

Onychoprion lunatus compared with Eptesicus innoxius

Key Differences

• Gray-backed Tern is Least Concern while Harmless Serotine is Near Threatened.

Taxonomic Classification

Rank	Gray-backed Tern	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	Onychoprion	Eptesicus
Species	Onychoprion lunatus	Eptesicus innoxius

Evolutionary Relationship

Gray-backed Tern and Harmless Serotine share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-backed Tern

LC — Least Concern

Harmless Serotine

NT — Near Threatened

Physical Characteristics

Attribute	Gray-backed Tern	Harmless Serotine
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray-backed Tern

Habitat

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

Range

Found in Norway.

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.