Ruff vs small tortoiseshell

Calidris pugnax compared with Aglais urticae

Key Differences

• Ruff is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Ruff	small tortoiseshell
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Arthropoda (節足動物)
Class	Aves (鳥類)	Insecta (昆虫)
Order	Charadriiformes (チドリ目)	Lepidoptera (チョウ目)
Family	Scolopacidae	Nymphalidae (Brush-footed Butterflies)
Genus	Calidris	Aglais
Species	Calidris pugnax	Aglais urticae

Evolutionary Relationship

Ruff and small tortoiseshell share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Ruff

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Ruff	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ruff

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).

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Ruff

Ruff（Calidris pugnax）は IUCN レッドリストで軽度懸念（LC）に分類されている。分布域全体に広く分布し個体数も豊富で、個体群は安定しており差し迫った保全上の懸念はない。

small tortoiseshell

スモールトータスシェル(Aglais urticae)はIUCNレッドリストで準絶滅危惧(NT)に分類されている。絶滅危惧種に分類される一歩手前の段階で、保全措置がなければ脆弱になる可能性のある個体群を持つ。

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden