Great Reed Warbler vs sea thread hydroid

Acrocephalus arundinaceus compared with Obelia dichotoma

Key Differences

• Great Reed Warbler is Critically Endangered while sea thread hydroid is Not Evaluated.

Taxonomic Classification

Rank	Great Reed Warbler	sea thread hydroid
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Cnidaria (Cnidarians)
Class	Aves (Birds)	Hydrozoa (Hydrozoa)
Order	Passeriformes (Songbirds)	Leptothecata (Leptothecata)
Family	Acrocephalidae	Campanulariidae
Genus	Acrocephalus	Obelia
Species	Acrocephalus arundinaceus	Obelia dichotoma

Evolutionary Relationship

Great Reed Warbler and sea thread hydroid share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Great Reed Warbler

CR — Critically Endangered

sea thread hydroid

NE — Not Evaluated

Physical Characteristics

Attribute	Great Reed Warbler	sea thread hydroid
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.

sea thread hydroid

Habitat

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

Range

Widely distributed across Africa (South Africa), Europe (5 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia), and South America (Argentina, Chile).

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 4 countries:

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