Medium-sized bark louse vs Red-billed Duck

Ectopsocus petersi compared with Anas erythrorhyncha

Key Differences

• Medium-sized bark louse is Not Evaluated while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Medium-sized bark louse	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Psocodea (Psocodea)	Anseriformes (Anseriformes)
Family	Ectopsocidae	Anatidae
Genus	Ectopsocus	Anas
Species	Ectopsocus petersi	Anas erythrorhyncha

Evolutionary Relationship

Medium-sized bark louse and Red-billed Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Medium-sized bark louse

NE — Not Evaluated

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Medium-sized bark louse	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Medium-sized bark louse

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

Red-billed Duck

Habitat

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

Range

Found across Europe (6 countries) and South America (Ecuador).

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway