Japanese Weasel vs Least Flycatcher

Mustela itatsi compared with Empidonax minimus

Key Differences

• Japanese Weasel is Near Threatened while Least Flycatcher is Least Concern.

Taxonomic Classification

Rank	Japanese Weasel	Least Flycatcher
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Passeriformes (Songbirds)
Family	Mustelidae (Weasels & Otters)	Tyrannidae
Genus	Mustela	Empidonax
Species	Mustela itatsi	Empidonax minimus

Evolutionary Relationship

Japanese Weasel and Least Flycatcher share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Japanese Weasel

NT — Near Threatened

Least Flycatcher

LC — Least Concern

Physical Characteristics

Attribute	Japanese Weasel	Least Flycatcher
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Least Flycatcher

Habitat

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

Range

Distributed across Colombia, Norway, and United States.