Buff-necked Ibis vs Lesser Pencil-tailed Tree Mouse

Theristicus caudatus compared with Chiropodomys pusillus

Key Differences

• Buff-necked Ibis is Least Concern while Lesser Pencil-tailed Tree Mouse is Data Deficient.

Taxonomic Classification

Rank	Buff-necked Ibis	Lesser Pencil-tailed Tree Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Pelecaniformes (Pelecaniformes)	Rodentia (Rodents)
Family	Threskiornithidae	Muridae (Mice & Rats)
Genus	Theristicus	Chiropodomys
Species	Theristicus caudatus	Chiropodomys pusillus

Evolutionary Relationship

Buff-necked Ibis and Lesser Pencil-tailed Tree Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Buff-necked Ibis

LC — Least Concern

Lesser Pencil-tailed Tree Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Buff-necked Ibis	Lesser Pencil-tailed Tree Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Buff-necked Ibis

Habitat

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

Range

Found across Europe (5 countries) and South America (Colombia, Venezuela).

Lesser Pencil-tailed Tree Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Buff-necked Ibis

Buff-necked Ibis (Theristicus caudatus) 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.