gray wolf vs House Sparrow

Canis lupus compared with Passer domesticus

Key Differences

• gray wolf is Critically Endangered while House Sparrow is Least Concern.

Taxonomic Classification

Rank	gray wolf	House Sparrow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Passeriformes (Songbirds)
Family	Canidae (Dogs & Wolves)	Passeridae
Genus	Canis (Dogs & Wolves)	Passer
Species	Canis lupus	Passer domesticus

Evolutionary Relationship

gray wolf and House Sparrow share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

gray wolf

CR — Critically Endangered

Population: ~300.0K

Trend: Stable →

House Sparrow

LC — Least Concern

Physical Characteristics

Attribute	gray wolf	House Sparrow
Diet	Carnivore	—
Average Lifespan	13 years	—
Average Length	1.6 m	—
Average Weight	45.0 kg	—

Habitat & Geographic Range

gray wolf

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, deserts and xeric shrublands, and tropical and subtropical dry broadleaf forests, among 13 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Seychelles), Asia (Japan), Europe (5 countries), North America (7 countries), Oceania and the Pacific (Marshall Islands, Vanuatu), and South America (5 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

House Sparrow

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 6 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (25 countries), Asia (4 countries), Europe (7 countries), North America (15 countries), Oceania and the Pacific (Australia, New Zealand, Vanuatu), and South America (8 countries).

gray wolf

The most widely distributed wild canid, gray wolves range from North America across Eurasia in diverse habitats including tundra, forests, and grasslands. Highly social animals living in family packs led by a dominant breeding pair. As keystone predators, wolves regulate prey populations and profoundly shape ecosystem structure, as demonstrated by their reintroduction in Yellowstone. Once heavily persecuted, populations are recovering in many regions.

House Sparrow

House Sparrow (Passer domesticus) 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 15 countries:

🇦🇷 Argentina 🇧🇸 Bahamas 🇧🇪 Belgium 🇨🇱 Chile 🇨🇴 Colombia 🇩🇰 Denmark 🇩🇴 Dominican Republic 🇪🇨 Ecuador 🇯🇲 Jamaica 🇳🇴 Norway 🇷🇺 Russia 🇸🇨 Seychelles 🇸🇪 Sweden 🇺🇸 United States 🇻🇺 Vanuatu