Great Reed Warbler vs Long-eared Owl

Acrocephalus arundinaceus compared with Asio otus

Key Differences

• Great Reed Warbler is Critically Endangered while Long-eared Owl is Data Deficient.

Taxonomic Classification

Rank	Great Reed Warbler	Long-eared Owl
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Passeriformes (Songbirds)	Strigiformes (Owls)
Family	Acrocephalidae	Strigidae (True Owls)
Genus	Acrocephalus	Asio
Species	Acrocephalus arundinaceus	Asio otus

Evolutionary Relationship

Great Reed Warbler and Long-eared Owl share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Great Reed Warbler

CR — Critically Endangered

Long-eared Owl

DD — Data Deficient

Physical Characteristics

Attribute	Great Reed Warbler	Long-eared Owl
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Great Reed Warbler

Habitat

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

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Long-eared Owl

Habitat

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

Range

Found across Europe (5 countries) and North America (United States).

Great Reed Warbler

Great Reed Warbler (Acrocephalus arundinaceus) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.

Long-eared Owl

Long-eared Owl (Asio otus) is classified as Data Deficient (DD) on the IUCN Red List. Insufficient data available to assess extinction risk. Further research and field surveys are needed.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden