Buff-necked Ibis vs Irrawaddy dolphin

Theristicus caudatus compared with Orcaella brevirostris

Key Differences

• Buff-necked Ibis is Least Concern while Irrawaddy dolphin is Endangered.

Taxonomic Classification

Rank	Buff-necked Ibis	Irrawaddy dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Pelecaniformes (Pelecaniformes)	Cetacea (Whales & Dolphins)
Family	Threskiornithidae	Delphinidae (Oceanic Dolphins)
Genus	Theristicus	Orcaella
Species	Theristicus caudatus	Orcaella brevirostris

Evolutionary Relationship

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

Conservation Status

Buff-necked Ibis

LC — Least Concern

Irrawaddy dolphin

EN — Endangered

Physical Characteristics

Attribute	Buff-necked Ibis	Irrawaddy dolphin
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).

Irrawaddy dolphin

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.