Allen's Big-eared Bat vs Chatham Petrel

Idionycteris phyllotis compared with Pterodroma axillaris

Key Differences

• Allen's Big-eared Bat is Least Concern while Chatham Petrel is Vulnerable.

Taxonomic Classification

Rank	Allen's Big-eared Bat	Chatham Petrel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Procellariiformes (Procellariiformes)
Family	Vespertilionidae	Procellariidae
Genus	Idionycteris	Pterodroma
Species	Idionycteris phyllotis	Pterodroma axillaris

Evolutionary Relationship

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

Conservation Status

Allen's Big-eared Bat

LC — Least Concern

Chatham Petrel

VU — Vulnerable

Physical Characteristics

Attribute	Allen's Big-eared Bat	Chatham Petrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Allen's Big-eared Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Chatham Petrel

Habitat

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

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Chatham Petrel

The Chatham Petrel (Pterodroma axillaris) is a species in the genus Pterodroma. It is currently classified as Vulnerable on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.