Gadwall vs Gray-footed Spiny-rat

Mareca strepera compared with Proechimys poliopus

Key Differences

• Gadwall is Least Concern while Gray-footed Spiny-rat is Vulnerable.

Taxonomic Classification

Rank	Gadwall	Gray-footed Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Rodentia (Rodents)
Family	Anatidae	Echimyidae
Genus	Mareca	Proechimys
Species	Mareca strepera	Proechimys poliopus

Evolutionary Relationship

Gadwall and Gray-footed Spiny-rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gadwall

LC — Least Concern

Gray-footed Spiny-rat

VU — Vulnerable

Physical Characteristics

Attribute	Gadwall	Gray-footed Spiny-rat
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).

Gray-footed Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela. Currently classified as Vulnerable 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.