American Tree-Creeper vs Brown Rat

Certhia americana compared with Rattus norvegicus

Taxonomic Classification

Rank	American Tree-Creeper	Brown Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Passeriformes (Songbirds)	Rodentia (Rodents)
Family	Certhiidae	Muridae (Mice & Rats)
Genus	Certhia	Rattus
Species	Certhia americana	Rattus norvegicus

Evolutionary Relationship

American Tree-Creeper and Brown Rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

American Tree-Creeper

LC — Least Concern

Brown Rat

LC — Least Concern

Physical Characteristics

Attribute	American Tree-Creeper	Brown Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American Tree-Creeper

Habitat

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

Range

Distributed across Norway and United States.

Brown Rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (11 countries), Asia (15 countries), Europe (41 countries), North America (16 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

American Tree-Creeper

The American Tree-Creeper (Certhia americana) is a species in the genus Certhia. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Brown Rat

Brown Rat (Rattus norvegicus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇺🇸 United States