Red-billed Duck vs Surprise Thorius

Anas erythrorhyncha compared with Thorius insperatus

Key Differences

• Red-billed Duck is Least Concern while Surprise Thorius is Critically Endangered.

Taxonomic Classification

Rank	Red-billed Duck	Surprise Thorius
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Amphibia (Amphibians)
Order	Anseriformes (Anseriformes)	Caudata (Caudata)
Family	Anatidae	Plethodontidae
Genus	Anas	Thorius
Species	Anas erythrorhyncha	Thorius insperatus

Evolutionary Relationship

Red-billed Duck and Surprise Thorius share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Red-billed Duck

LC — Least Concern

Surprise Thorius

CR — Critically Endangered

Physical Characteristics

Attribute	Red-billed Duck	Surprise Thorius
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Red-billed Duck

Habitat

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

Range

Found across Europe (6 countries) and South America (Ecuador).

Surprise Thorius

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) 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.