False widow vs Red-billed Duck

Steatoda bipunctata compared with Anas erythrorhyncha

Taxonomic Classification

Rank	False widow	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Arachnida (Arachnids)	Aves (Birds)
Order	Araneae (Araneae)	Anseriformes (Anseriformes)
Family	Theridiidae	Anatidae
Genus	Steatoda	Anas
Species	Steatoda bipunctata	Anas erythrorhyncha

Evolutionary Relationship

False widow and Red-billed Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

False widow

LC — Least Concern

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	False widow	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

False widow

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Found across Europe (4 countries) and North America (Canada, 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