Gray Birch Mouse vs Merriam’s Pocket Mouse

Sicista pseudonapaea compared with Perognathus merriami

Key Differences

• Gray Birch Mouse is Data Deficient while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Gray Birch Mouse	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family	Dipodidae	Heteromyidae
Genus	Sicista	Perognathus
Species	Sicista pseudonapaea	Perognathus merriami

Evolutionary Relationship

Gray Birch Mouse and Merriam’s Pocket Mouse share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Gray Birch Mouse

DD — Data Deficient

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Gray Birch Mouse	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.