robust shell vs Yellow-billed Pintail

Littoraria undulata compared with Anas georgica

Key Differences

• robust shell is Least Concern while Yellow-billed Pintail is Endangered.

Taxonomic Classification

Rank	robust shell	Yellow-billed Pintail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Aves (Birds)
Order	Littorinimorpha (Littorinimorpha)	Anseriformes (Anseriformes)
Family	Littorinidae	Anatidae
Genus	Littoraria	Anas
Species	Littoraria undulata	Anas georgica

Evolutionary Relationship

robust shell and Yellow-billed Pintail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

robust shell

LC — Least Concern

Yellow-billed Pintail

EN — Endangered

Physical Characteristics

Attribute	robust shell	Yellow-billed Pintail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

robust shell

Habitat

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

Range

Found in Taiwan.

Yellow-billed Pintail

Habitat

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

Range

Found across Europe (6 countries) and South America (Colombia, Ecuador). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Yellow-billed Pintail

Yellow-billed Pintail (Anas georgica) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.