Black-Based Cluster Fly vs Laysan Duck

Pollenia labialis compared with Anas laysanensis

Key Differences

Black-Based Cluster Fly is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Black-Based Cluster Fly	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Diptera (Diptera)	Anseriformes (Anseriformes)
Family	Polleniidae	Anatidae
Genus	Pollenia	Anas
Species	Pollenia labialis	Anas laysanensis

Evolutionary Relationship

Black-Based Cluster Fly and Laysan Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

View Kingdom: Animalia

Conservation Status

Black-Based Cluster Fly

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Black-Based Cluster Fly	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-Based Cluster Fly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, Sweden, and 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.

Black-Based Cluster Fly

The Black-Based Cluster Fly (Pollenia labialis) is a species in the genus Pollenia. 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.