Buff-necked Ibis vs Calamian Deer

Theristicus caudatus compared with Axis calamianensis

Key Differences

• Buff-necked Ibis is Least Concern while Calamian Deer is Endangered.

Taxonomic Classification

Rank	Buff-necked Ibis	Calamian Deer
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Pelecaniformes (Pelecaniformes)	Artiodactyla (Even-toed Ungulates)
Family	Threskiornithidae	Cervidae (Deer)
Genus	Theristicus	Axis
Species	Theristicus caudatus	Axis calamianensis

Evolutionary Relationship

Buff-necked Ibis and Calamian Deer share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Buff-necked Ibis

LC — Least Concern

Calamian Deer

EN — Endangered

Physical Characteristics

Attribute	Buff-necked Ibis	Calamian Deer
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).

Calamian Deer

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.

Calamian Deer

The Calamian Deer (Axis calamianensis) is a species in the genus Axis. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.