Laysan Duck vs Notch-wing Button

Anas laysanensis compared with Acleris emargana

Key Differences

• Laysan Duck is Critically Endangered while Notch-wing Button is Least Concern.

Taxonomic Classification

Rank	Laysan Duck	Notch-wing Button
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Aves (Birds)	Insecta (Insects)
Order	Anseriformes (Anseriformes)	Lepidoptera (Butterflies & Moths)
Family	Anatidae	Tortricidae
Genus	Anas	Acleris
Species	Anas laysanensis	Acleris emargana

Evolutionary Relationship

Laysan Duck and Notch-wing Button share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Laysan Duck

CR — Critically Endangered

Notch-wing Button

LC — Least Concern

Physical Characteristics

Attribute	Laysan Duck	Notch-wing Button
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Notch-wing Button

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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