Bufflehead vs Lesser Noctule

Bucephala albeola compared with Nyctalus leisleri

Key Differences

• Bufflehead is Not Evaluated while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Bufflehead	Lesser Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Chiroptera (Bats)
Family	Anatidae	Vespertilionidae
Genus	Bucephala	Nyctalus
Species	Bucephala albeola	Nyctalus leisleri

Evolutionary Relationship

Bufflehead and Lesser Noctule share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bufflehead

NE — Not Evaluated

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Bufflehead	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bufflehead

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (11 countries) and North America (United States).

Lesser Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Bufflehead

Bufflehead (Bucephala albeola) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden