American marten vs Crested Shelduck

Martes americana compared with Tadorna cristata

Key Differences

• American marten is Least Concern while Crested Shelduck is Critically Endangered.

Taxonomic Classification

Rank	American marten	Crested Shelduck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Anseriformes (Anseriformes)
Family	Mustelidae (Weasels & Otters)	Anatidae
Genus	Martes	Tadorna
Species	Martes americana	Tadorna cristata

Evolutionary Relationship

American marten and Crested Shelduck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

American marten

LC — Least Concern

Crested Shelduck

CR — Critically Endangered

Physical Characteristics

Attribute	American marten	Crested Shelduck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American marten

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States.

Crested Shelduck

Habitat

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

Range

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

American marten

The American marten (Martes americana) is a species in the genus Martes. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.