Eurasian Marsh-Harrier vs Hen Harrier

Circus aeruginosus compared with Circus cyaneus

Key Differences

Eurasian Marsh-Harrier is Endangered while Hen Harrier is Least Concern.

Taxonomic Classification

Rank	Eurasian Marsh-Harrier	Hen Harrier
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order same	Accipitriformes (Hawks & Eagles)	Accipitriformes (Hawks & Eagles)
Family same	Accipitridae (Hawks & Eagles)	Accipitridae (Hawks & Eagles)
Genus same	Circus	Circus
Species	Circus aeruginosus	Circus cyaneus

Evolutionary Relationship

Eurasian Marsh-Harrier and Hen Harrier share a common ancestor at the Genus level: Circus.

View Genus: Circus

Conservation Status

Eurasian Marsh-Harrier

EN — Endangered

Hen Harrier

LC — Least Concern

Physical Characteristics

Attribute	Eurasian Marsh-Harrier	Hen Harrier
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Eurasian Marsh-Harrier

Habitat

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

Range

Found across Asia (Taiwan) and Europe (6 countries). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Hen Harrier

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).

Eurasian Marsh-Harrier

Eurasian Marsh-Harrier (Circus aeruginosus) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Hen Harrier

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.