large thorn vs Laysan Duck

Ennomos autumnaria compared with Anas laysanensis

Key Differences

• large thorn is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	large thorn	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Lepidoptera (Butterflies & Moths)	Anseriformes (Anseriformes)
Family	Geometridae	Anatidae
Genus	Ennomos	Anas
Species	Ennomos autumnaria	Anas laysanensis

Evolutionary Relationship

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

Conservation Status

large thorn

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	large thorn	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

large thorn

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

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.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway