Flat Periwinkle vs marreca-parda

Littorina obtusata compared with Anas georgica

Key Differences

• Flat Periwinkle is Least Concern while marreca-parda is Endangered.

Taxonomic Classification

Rank	Flat Periwinkle	marreca-parda
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Moluscos)	Chordata (cordados)
Class	Gastropoda (Gastrópodes)	Aves (ave)
Order	Littorinimorpha (Littorinimorpha)	Anseriformes (Anseriformes)
Family	Littorinidae	Anatidae
Genus	Littorina	Anas
Species	Littorina obtusata	Anas georgica

Evolutionary Relationship

Flat Periwinkle and marreca-parda share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Flat Periwinkle

LC — Least Concern

marreca-parda

EN — Endangered

Physical Characteristics

Attribute	Flat Periwinkle	marreca-parda
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Flat Periwinkle

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

marreca-parda

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.

marreca-parda

O marreco-de-bico-amarelo (Anas georgica) está classificado como Em Perigo (EN) na Lista Vermelha da IUCN. Com alto risco de extinção na natureza, com declínio populacional significativo e ameaças contínuas à sua sobrevivência.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway