brittlestar vs Eurasian Marsh-Harrier

Amphiura filiformis compared with Circus aeruginosus

Key Differences

• brittlestar is Least Concern while Eurasian Marsh-Harrier is Endangered.

Taxonomic Classification

Rank	brittlestar	Eurasian Marsh-Harrier
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Chordata (Chordates)
Class	Ophiuroidea (Ophiuroidea)	Aves (Birds)
Order	Amphilepidida (Amphilepidida)	Accipitriformes (Hawks & Eagles)
Family	Amphiuridae	Accipitridae (Hawks & Eagles)
Genus	Amphiura	Circus
Species	Amphiura filiformis	Circus aeruginosus

Evolutionary Relationship

brittlestar and Eurasian Marsh-Harrier share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

brittlestar

LC — Least Concern

Eurasian Marsh-Harrier

EN — Endangered

Physical Characteristics

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

Habitat & Geographic Range

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

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.

brittlestar

The Brittlestar (Amphiura filiformis) is a species in the genus Amphiura. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

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.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden