Kornweihe vs Eisbär

Circus cyaneus compared with Ursus maritimus

Key Differences

• Kornweihe is Least Concern while Eisbär is Vulnerable.

Taxonomic Classification

Rank	Kornweihe	Eisbär
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Aves (Vögel)	Mammalia (Säugetiere)
Order	Accipitriformes (Greifvögel)	Carnivora (Raubtiere)
Family	Accipitridae (Hawks & Eagles)	Ursidae (Bears)
Genus	Circus	Ursus (Bears)
Species	Circus cyaneus	Ursus maritimus

Evolutionary Relationship

Kornweihe and Eisbär share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Kornweihe

LC — Least Concern

Eisbär

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Kornweihe	Eisbär
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Kornweihe

Habitat

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

Range

Widely distributed across Europe (7 countries), North America (United States), and South America (Venezuela).

Eisbär

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Kornweihe

Hen Harrier (Circus cyaneus) 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.

Eisbär

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway