Great Reed Warbler vs

Acrocephalus arundinaceus compared with Phacus hamelii

Key Differences

Great Reed Warbler is Critically Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Great Reed Warbler
Kingdom	Animalia (Animals)	Protozoa (protozoa)
Phylum	Chordata (Chordates)	Euglenozoa (Euglenozoa)
Class	Aves (Birds)	Euglenoidea (Euglenoidea)
Order	Passeriformes (Songbirds)	Euglenida (Euglenida)
Family	Acrocephalidae	Phacidae
Genus	Acrocephalus	Phacus
Species	Acrocephalus arundinaceus	Phacus hamelii

Conservation Status

Great Reed Warbler

CR — Critically Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	Great Reed Warbler
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.

Habitat

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

Range

Distributed across Brazil, Denmark, and Taiwan.

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.

Phacus hamelii is a unicellular, photosynthetic euglenoid alga with a flattened, asymmetric cell body containing chloroplasts and a distinctive posterior tail-like extension. It inhabits freshwater environments including ponds, ditches, and slow-moving water bodies rich in organic matter. Like other Phacus species, it uses a flagellum for locomotion and can perform both photosynthesis and heterotrophic feeding.