Hen Harrier vs Reunion Harrier

Circus cyaneus compared with Circus maillardi

Key Differences

• Hen Harrier is Least Concern while Reunion Harrier is Endangered.

Taxonomic Classification

Rank	Hen Harrier	Reunion 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 cyaneus	Circus maillardi

Evolutionary Relationship

Hen Harrier and Reunion Harrier share a common ancestor at the Genus level: Circus.

Conservation Status

Hen Harrier

LC — Least Concern

Reunion Harrier

EN — Endangered

Physical Characteristics

Attribute	Hen Harrier	Reunion Harrier
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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).

Reunion Harrier

Habitat

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

Range

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

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway