Duck Flea vs Lesser Noctule

Ceratophyllus garei compared with Nyctalus leisleri

Key Differences

• Duck Flea is Not Evaluated while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Duck Flea	Lesser Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Siphonaptera (Siphonaptera)	Chiroptera (Bats)
Family	Ceratophyllidae	Vespertilionidae
Genus	Ceratophyllus	Nyctalus
Species	Ceratophyllus garei	Nyctalus leisleri

Evolutionary Relationship

Duck Flea and Lesser Noctule share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Duck Flea

NE — Not Evaluated

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Duck Flea	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Duck Flea

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, and Sweden.

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.

Shared Countries

Both species can be found in 2 countries:

🇩🇰 Denmark 🇸🇪 Sweden