Laysan Duck vs Silver Gull

Anas laysanensis compared with Chroicocephalus novaehollandiae

Key Differences

• Laysan Duck is Critically Endangered while Silver Gull is Not Evaluated.

Taxonomic Classification

Rank	Laysan Duck	Silver Gull
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Anseriformes (Anseriformes)	Charadriiformes (Charadriiformes)
Family	Anatidae	Laridae
Genus	Anas	Chroicocephalus
Species	Anas laysanensis	Chroicocephalus novaehollandiae

Evolutionary Relationship

Laysan Duck and Silver Gull share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Laysan Duck

CR — Critically Endangered

Silver Gull

NE — Not Evaluated

Physical Characteristics

Attribute	Laysan Duck	Silver Gull
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.

Silver Gull

Habitat

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

Range

Found in Norway.

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 1 countries:

🇳🇴 Norway