Buff-necked Ibis vs Giant Otter

Theristicus caudatus compared with Pteronura brasiliensis

Key Differences

• Buff-necked Ibis is Least Concern while Giant Otter is Endangered.

Taxonomic Classification

Rank	Buff-necked Ibis	Giant Otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Pelecaniformes (Pelecaniformes)	Carnivora (Carnivorans)
Family	Threskiornithidae	Mustelidae (Weasels & Otters)
Genus	Theristicus	Pteronura
Species	Theristicus caudatus	Pteronura brasiliensis

Evolutionary Relationship

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

Conservation Status

Buff-necked Ibis

LC — Least Concern

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Buff-necked Ibis	Giant Otter
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).

Giant Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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:

🇨🇴 Colombia 🇻🇪 Venezuela