鬼鴞 vs Canadian beaver

Aegolius funereus compared with Castor canadensis

Key Differences

• 鬼鴞 is Least Concern while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	鬼鴞	Canadian beaver
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Aves (鳥綱)	Mammalia (哺乳動物)
Order	Strigiformes (鸮形目)	Rodentia (啮齿目)
Family	Strigidae (True Owls)	Castoridae (Beavers)
Genus	Aegolius	Castor (Beavers)
Species	Aegolius funereus	Castor canadensis

Evolutionary Relationship

鬼鴞 and Canadian beaver share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

鬼鴞

LC — Least Concern

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	鬼鴞	Canadian beaver
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

鬼鴞

Habitat

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

Range

Found across Europe (6 countries) and North America (United States).

Canadian beaver

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Europe (15 countries), North America (United States), and South America (Argentina, Chile).

鬼鴞

The Boreal Owl (Aegolius funereus) is a species in the genus Aegolius. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Canadian beaver

北美最大的啮齿动物加拿大河狸体重可达32公斤，是栖息于加拿大和美国北部河流、湖泊和湿地的杰出生态系统工程师。通过伐木和建造可达数百米的水坝形成水塘，为数百种物种提供生境。其巢穴和运河改变了整个流域。曾因毛皮贸易被猎杀至濒临灭绝，但种群已大幅恢复。

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden 🇺🇦 Ukraine 🇺🇸 United States