Black Swan vs Brown Rat

Cygnus atratus compared with Rattus norvegicus

Key Differences

• Black Swan is Not Evaluated while Brown Rat is Least Concern.

Taxonomic Classification

Rank	Black Swan	Brown Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Rodentia (Rodents)
Family	Anatidae	Muridae (Mice & Rats)
Genus	Cygnus	Rattus
Species	Cygnus atratus	Rattus norvegicus

Evolutionary Relationship

Black Swan and Brown Rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black Swan

NE — Not Evaluated

Brown Rat

LC — Least Concern

Physical Characteristics

Attribute	Black Swan	Brown Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Swan

Habitat

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

Range

Widely distributed across Asia (Japan, Taiwan, United Arab Emirates), Europe (21 countries), Oceania and the Pacific (New Zealand), and South America (Argentina, Colombia, Ecuador).

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).

Black Swan

Black Swan (Cygnus atratus) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

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 28 countries:

🇦🇷 Argentina 🇦🇹 Austria 🇧🇪 Belgium 🇧🇦 Bosnia and Herzegovina 🇨🇴 Colombia 🇭🇷 Croatia 🇩🇰 Denmark 🇪🇨 Ecuador 🇪🇪 Estonia 🇫🇷 France 🇩🇪 Germany 🇮🇸 Iceland 🇮🇪 Ireland 🇮🇹 Italy 🇯🇵 Japan 🇱🇻 Latvia 🇳🇱 Netherlands 🇳🇿 New Zealand 🇳🇴 Norway 🇵🇱 Poland 🇸🇰 Slovakia 🇸🇮 Slovenia 🇪🇸 Spain 🇸🇪 Sweden 🇹🇼 Taiwan 🇺🇦 Ukraine 🇦🇪 United Arab Emirates 🇬🇧 United Kingdom