Atlantic Ancula vs Crested Shelduck

Ancula gibbosa compared with Tadorna cristata

Key Differences

• Atlantic Ancula is Least Concern while Crested Shelduck is Critically Endangered.

Taxonomic Classification

Rank	Atlantic Ancula	Crested Shelduck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Aves (Birds)
Order	Nudibranchia (Nudibranchia)	Anseriformes (Anseriformes)
Family	Goniodorididae	Anatidae
Genus	Ancula	Tadorna
Species	Ancula gibbosa	Tadorna cristata

Evolutionary Relationship

Atlantic Ancula and Crested Shelduck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Atlantic Ancula

LC — Least Concern

Crested Shelduck

CR — Critically Endangered

Physical Characteristics

Attribute	Atlantic Ancula	Crested Shelduck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Ancula

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Denmark, Norway, and Sweden.

Crested Shelduck

Habitat

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

Range

Found in Norway. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Atlantic Ancula

The Atlantic Ancula (Ancula gibbosa) is a species in the genus Ancula. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway