Crested Shelduck vs Pacific white-sided dolphin

Tadorna cristata compared with Lagenorhynchus obliquidens

Key Differences

• Crested Shelduck is Critically Endangered while Pacific white-sided dolphin is Least Concern.

Taxonomic Classification

Rank	Crested Shelduck	Pacific white-sided dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Cetacea (Whales & Dolphins)
Family	Anatidae	Delphinidae (Oceanic Dolphins)
Genus	Tadorna	Lagenorhynchus
Species	Tadorna cristata	Lagenorhynchus obliquidens

Evolutionary Relationship

Crested Shelduck and Pacific white-sided dolphin share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Crested Shelduck

CR — Critically Endangered

Pacific white-sided dolphin

LC — Least Concern

Physical Characteristics

Attribute	Crested Shelduck	Pacific white-sided dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Pacific white-sided dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.