small tortoiseshell vs Thick-billed Murre

Aglais urticae compared with Uria lomvia

Key Differences

• small tortoiseshell is Near Threatened while Thick-billed Murre is Endangered.

Taxonomic Classification

Rank	small tortoiseshell	Thick-billed Murre
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Lepidoptera (Butterflies & Moths)	Charadriiformes (Charadriiformes)
Family	Nymphalidae (Brush-footed Butterflies)	Alcidae
Genus	Aglais	Uria
Species	Aglais urticae	Uria lomvia

Evolutionary Relationship

small tortoiseshell and Thick-billed Murre share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

small tortoiseshell

NT — Near Threatened

Thick-billed Murre

EN — Endangered

Physical Characteristics

Attribute	small tortoiseshell	Thick-billed Murre
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Thick-billed Murre

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

small tortoiseshell

small tortoiseshell (Aglais urticae) 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.

Shared Countries

Both species can be found in 4 countries:

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