Great Reed Warbler vs Olive Scribble Lichen

Acrocephalus arundinaceus compared with Opegrapha vulgata

Key Differences

• Great Reed Warbler is Critically Endangered while Olive Scribble Lichen is Least Concern.

Taxonomic Classification

Rank	Great Reed Warbler	Olive Scribble Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Aves (Birds)	Lecanoromycetes (Lecanoromycetes)
Order	Passeriformes (Songbirds)	Ostropales (Ostropales)
Family	Acrocephalidae	Graphidaceae
Genus	Acrocephalus	Opegrapha
Species	Acrocephalus arundinaceus	Opegrapha vulgata

Conservation Status

Great Reed Warbler

CR — Critically Endangered

Olive Scribble Lichen

LC — Least Concern

Physical Characteristics

Attribute	Great Reed Warbler	Olive Scribble Lichen
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.

Olive Scribble Lichen

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 (Colombia).

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 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden