Allen's Big-eared Bat vs Common Chiffchaff

Idionycteris phyllotis compared with Phylloscopus collybita

Taxonomic Classification

Rank	Allen's Big-eared Bat	Common Chiffchaff
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Passeriformes (Songbirds)
Family	Vespertilionidae	Phylloscopidae
Genus	Idionycteris	Phylloscopus
Species	Idionycteris phyllotis	Phylloscopus collybita

Evolutionary Relationship

Allen's Big-eared Bat and Common Chiffchaff share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Allen's Big-eared Bat

LC — Least Concern

Common Chiffchaff

LC — Least Concern

Physical Characteristics

Attribute	Allen's Big-eared Bat	Common Chiffchaff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Allen's Big-eared Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Chiffchaff

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Russia, and Sweden.

Allen's Big-eared Bat

The Allen's Big-eared Bat (Idionycteris phyllotis) is a species in the genus Idionycteris. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Common Chiffchaff

Common Chiffchaff (Phylloscopus collybita) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.