Bécasseau roussâtre vs Bécasseau variable

Calidris subruficollis compared with Calidris alpina

Key Differences

• Bécasseau roussâtre is Near Threatened while Bécasseau variable is Least Concern.

Taxonomic Classification

Rank	Bécasseau roussâtre	Bécasseau variable
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (oiseau)	Aves (oiseau)
Order same	Charadriiformes (Charadriiformes)	Charadriiformes (Charadriiformes)
Family same	Scolopacidae	Scolopacidae
Genus same	Calidris	Calidris
Species	Calidris subruficollis	Calidris alpina

Evolutionary Relationship

Bécasseau roussâtre and Bécasseau variable share a common ancestor at the Genus level: Calidris.

Conservation Status

Bécasseau roussâtre

NT — Near Threatened

Bécasseau variable

LC — Least Concern

Physical Characteristics

Attribute	Bécasseau roussâtre	Bécasseau variable
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bécasseau roussâtre

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Venezuela). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Bécasseau variable

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Bécasseau roussâtre

Buff-breasted Sandpiper (Calidris subruficollis) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Bécasseau variable

Dunlin (Calidris alpina) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 7 countries:

🇧🇪 Belgium 🇨🇴 Colombia 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States 🇻🇪 Venezuela