Diminutive Serotine vs Great Bittern

Eptesicus diminutus compared with Botaurus stellaris

Key Differences

• Diminutive Serotine is Data Deficient while Great Bittern is Critically Endangered.

Taxonomic Classification

Rank	Diminutive Serotine	Great Bittern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Pelecaniformes (Pelecaniformes)
Family	Vespertilionidae	Ardeidae
Genus	Eptesicus	Botaurus
Species	Eptesicus diminutus	Botaurus stellaris

Evolutionary Relationship

Diminutive Serotine and Great Bittern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Diminutive Serotine

DD — Data Deficient

Great Bittern

CR — Critically Endangered

Physical Characteristics

Attribute	Diminutive Serotine	Great Bittern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Diminutive Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela.

Great Bittern

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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

Great Bittern

Great Bittern (Botaurus stellaris) 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.