Gray-backed Tern vs Japanese Weasel

Onychoprion lunatus compared with Mustela itatsi

Key Differences

• Gray-backed Tern is Least Concern while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Gray-backed Tern	Japanese Weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Charadriiformes (Charadriiformes)	Carnivora (Carnivorans)
Family	Laridae	Mustelidae (Weasels & Otters)
Genus	Onychoprion	Mustela
Species	Onychoprion lunatus	Mustela itatsi

Evolutionary Relationship

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

Conservation Status

Gray-backed Tern

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Gray-backed Tern	Japanese Weasel
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.

Japanese Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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