Brown Thornbill vs Lesser Clouded Yellow

Acanthiza pusilla compared with Colias chrysotheme

Key Differences

• Brown Thornbill is Least Concern while Lesser Clouded Yellow is Vulnerable.

Taxonomic Classification

Rank	Brown Thornbill	Lesser Clouded Yellow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Aves (Birds)	Insecta (Insects)
Order	Passeriformes (Songbirds)	Lepidoptera (Butterflies & Moths)
Family	Acanthizidae	Pieridae
Genus	Acanthiza	Colias
Species	Acanthiza pusilla	Colias chrysotheme

Evolutionary Relationship

Brown Thornbill and Lesser Clouded Yellow share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brown Thornbill

LC — Least Concern

Lesser Clouded Yellow

VU — Vulnerable

Physical Characteristics

Attribute	Brown Thornbill	Lesser Clouded Yellow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Thornbill

Habitat

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

Range

Found in Norway.

Lesser Clouded Yellow

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (9 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Brown Thornbill

The Brown Thornbill (Acanthiza pusilla) is a species in the genus Acanthiza. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.