Black-faced Ibis vs Buff-necked Ibis

Theristicus melanopis compared with Theristicus caudatus

Taxonomic Classification

Rank	Black-faced Ibis	Buff-necked Ibis
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Aves (นก)	Aves (นก)
Order same	Pelecaniformes (อันดับนกกระทุง)	Pelecaniformes (อันดับนกกระทุง)
Family same	Threskiornithidae	Threskiornithidae
Genus same	Theristicus	Theristicus
Species	Theristicus melanopis	Theristicus caudatus

Evolutionary Relationship

Black-faced Ibis and Buff-necked Ibis share a common ancestor at the Genus level: Theristicus.

Conservation Status

Black-faced Ibis

LC — Least Concern

Buff-necked Ibis

LC — Least Concern

Physical Characteristics

Attribute	Black-faced Ibis	Buff-necked Ibis
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-faced Ibis

Habitat

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

Range

Distributed across Belgium, Ecuador, and Norway.

Buff-necked Ibis

Habitat

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

Range

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

Black-faced Ibis

The Black-faced Ibis (Theristicus melanopis) is a species in the genus Theristicus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments. Distributed across Belgium, Ecuador, and Norway.

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.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway