Bird flea vs Laysan Duck

Ceratophyllus zhovtyi compared with Anas laysanensis

Key Differences

• Bird flea is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Bird flea	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Siphonaptera (Siphonaptera)	Anseriformes (Anseriformes)
Family	Ceratophyllidae	Anatidae
Genus	Ceratophyllus	Anas
Species	Ceratophyllus zhovtyi	Anas laysanensis

Evolutionary Relationship

Bird flea and Laysan Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bird flea

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Bird flea	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bird flea

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in United States.

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Bird flea

The Bird flea (Ceratophyllus zhovtyi) is a species in the genus Ceratophyllus. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Laysan Duck

Laysan Duck (Anas laysanensis) 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.