small tortoiseshell vs Willow Warbler

Aglais urticae compared with Phylloscopus trochilus

Key Differences

small tortoiseshell is Near Threatened while Willow Warbler is Vulnerable.

Taxonomic Classification

Rank	small tortoiseshell	Willow Warbler
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Lepidoptera (Butterflies & Moths)	Passeriformes (Songbirds)
Family	Nymphalidae (Brush-footed Butterflies)	Phylloscopidae
Genus	Aglais	Phylloscopus
Species	Aglais urticae	Phylloscopus trochilus

Evolutionary Relationship

small tortoiseshell and Willow Warbler share a common ancestor at the Kingdom level: Animalia. (Animals)

View Kingdom: Animalia

Conservation Status

small tortoiseshell

NT — Near Threatened

Willow Warbler

VU — Vulnerable

Physical Characteristics

Attribute	small tortoiseshell	Willow Warbler
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.

Willow Warbler

Habitat

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

Range

Found across Asia (Taiwan) and Europe (5 countries). Currently classified as Vulnerable 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.

Willow Warbler

Willow Warbler (Phylloscopus trochilus) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.