Great Reed Warbler vs Onion Downy Mildew

Acrocephalus arundinaceus compared with Peronospora destructor

Key Differences

• Great Reed Warbler is Critically Endangered while Onion Downy Mildew is Not Evaluated.

Taxonomic Classification

Rank	Great Reed Warbler	Onion Downy Mildew
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Oomycota (Oomycetes)
Class	Aves (Birds)	Peronosporea (Peronosporea)
Order	Passeriformes (Songbirds)	Peronosporales (Peronosporales)
Family	Acrocephalidae	Peronosporaceae
Genus	Acrocephalus	Peronospora
Species	Acrocephalus arundinaceus	Peronospora destructor

Conservation Status

Great Reed Warbler

CR — Critically Endangered

Onion Downy Mildew

NE — Not Evaluated

Physical Characteristics

Attribute	Great Reed Warbler	Onion Downy Mildew
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.

Onion Downy Mildew

Habitat

Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Brazil).

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.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden