bígaro vs Ánade de Laysán

Littorina littorea compared with Anas laysanensis

Key Differences

• bígaro is Least Concern while Ánade de Laysán is Critically Endangered.

Taxonomic Classification

Rank	bígaro	Ánade de Laysán
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (moluscos)	Chordata (cordados)
Class	Gastropoda (gastrópodos)	Aves (Birds)
Order	Littorinimorpha (Littorinimorpha)	Anseriformes (Anseriformes)
Family	Littorinidae	Anatidae
Genus	Littorina	Anas
Species	Littorina littorea	Anas laysanensis

Evolutionary Relationship

bígaro and Ánade de Laysán share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

bígaro

LC — Least Concern

Ánade de Laysán

CR — Critically Endangered

Physical Characteristics

Attribute	bígaro	Ánade de Laysán
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

bígaro

Habitat

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

Range

Found across Europe (4 countries) and North America (Canada, United States).

Ánade de Laysán

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.

bígaro

El bígaro común (Littorina littorea) está clasificado como Preocupación Menor (LC) en la Lista Roja de la UICN. Ampliamente distribuido y abundante en su área de distribución, con poblaciones estables y sin preocupaciones de conservación inmediatas.

Ánade de Laysán

El Pato de Laysan (Anas laysanensis) está clasificado como En Peligro Crítico (CR) en la Lista Roja de la UICN. Enfrenta un riesgo extremadamente alto de extinción en estado silvestre debido a la grave disminución de su población y la pérdida de hábitat.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway