Eye-ringed Tody-Tyrant vs Merriam’s Pocket Mouse

Hemitriccus orbitatus compared with Perognathus merriami

Key Differences

• Eye-ringed Tody-Tyrant is Near Threatened while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Eye-ringed Tody-Tyrant	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Passeriformes (Songbirds)	Rodentia (Rodents)
Family	Tyrannidae	Heteromyidae
Genus	Hemitriccus	Perognathus
Species	Hemitriccus orbitatus	Perognathus merriami

Evolutionary Relationship

Eye-ringed Tody-Tyrant and Merriam’s Pocket Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Eye-ringed Tody-Tyrant

NT — Near Threatened

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Eye-ringed Tody-Tyrant	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Eye-ringed Tody-Tyrant

Habitat

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

Range

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

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.