Four-toed Hedgehog vs Willow Warbler

Atelerix albiventris compared with Phylloscopus trochilus

Key Differences

• Four-toed Hedgehog is Least Concern while Willow Warbler is Vulnerable.

Taxonomic Classification

Rank	Four-toed Hedgehog	Willow Warbler
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Erinaceomorpha (Erinaceomorpha)	Passeriformes (Songbirds)
Family	Erinaceidae	Phylloscopidae
Genus	Atelerix	Phylloscopus
Species	Atelerix albiventris	Phylloscopus trochilus

Evolutionary Relationship

Four-toed Hedgehog and Willow Warbler share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Four-toed Hedgehog

LC — Least Concern

Willow Warbler

VU — Vulnerable

Physical Characteristics

Attribute	Four-toed Hedgehog	Willow Warbler
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Four-toed Hedgehog

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Ecuador and Spain.

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.

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.