Gadwall vs Giant Otter

Mareca strepera compared with Pteronura brasiliensis

Key Differences

• Gadwall is Least Concern while Giant Otter is Endangered.

Taxonomic Classification

Rank	Gadwall	Giant Otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Carnivora (Carnivorans)
Family	Anatidae	Mustelidae (Weasels & Otters)
Genus	Mareca	Pteronura
Species	Mareca strepera	Pteronura brasiliensis

Evolutionary Relationship

Gadwall and Giant Otter share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gadwall

LC — Least Concern

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Gadwall	Giant Otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gadwall

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia).

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.

Gadwall

Gadwall (Mareca strepera) 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 1 countries:

🇨🇴 Colombia