Brown Rat vs Red-crested Cardinal

Rattus norvegicus compared with Paroaria coronata

Taxonomic Classification

Rank	Brown Rat	Red-crested Cardinal
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Passeriformes (Songbirds)
Family	Muridae (Mice & Rats)	Thraupidae
Genus	Rattus	Paroaria
Species	Rattus norvegicus	Paroaria coronata

Evolutionary Relationship

Brown Rat and Red-crested Cardinal share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown Rat

LC — Least Concern

Red-crested Cardinal

LC — Least Concern

Physical Characteristics

Attribute	Brown Rat	Red-crested Cardinal
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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).

Red-crested Cardinal

Habitat

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

Range

Widely distributed across Asia (Japan, Taiwan, United Arab Emirates), Europe (8 countries), North America (United States), and South America (Chile, Ecuador, Peru).

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.

Red-crested Cardinal

A striking medium-sized bird with brilliant red crest, white face, and grey body native to South America from Bolivia and Brazil to Argentina, red-crested cardinals have been introduced to Hawaii and other Pacific islands, becoming iconic garden birds in Honolulu. They inhabit dense shrubs, grassland edges, and suburban gardens, foraging on seeds and small insects. Despite their name and superficial resemblance, they are not closely related to North American cardinals but belong to the tanager family.

Shared Countries

Both species can be found in 15 countries:

🇧🇪 Belgium 🇨🇱 Chile 🇪🇨 Ecuador 🇫🇷 France 🇩🇪 Germany 🇮🇹 Italy 🇯🇵 Japan 🇳🇱 Netherlands 🇳🇴 Norway 🇵🇪 Peru 🇪🇸 Spain 🇹🇼 Taiwan 🇦🇪 United Arab Emirates 🇬🇧 United Kingdom 🇺🇸 United States