European otter vs Nelson'S Sharp-Tailed Sparrow

Lutra lutra compared with Ammospiza nelsoni

Key Differences

European otter is Vulnerable while Nelson'S Sharp-Tailed Sparrow is Least Concern.

Taxonomic Classification

Rank	European otter	Nelson'S Sharp-Tailed Sparrow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Passeriformes (Songbirds)
Family	Mustelidae (Weasels & Otters)	Passerellidae
Genus	Lutra (Otters)	Ammospiza
Species	Lutra lutra	Ammospiza nelsoni

Evolutionary Relationship

European otter and Nelson'S Sharp-Tailed Sparrow share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

Nelson'S Sharp-Tailed Sparrow

LC — Least Concern

Physical Characteristics

Attribute	European otter	Nelson'S Sharp-Tailed Sparrow
Diet	Carnivore	—
Average Lifespan	10 years	—
Average Length	1.0 m	—
Average Weight	10.0 kg	—

Habitat & Geographic Range

European otter

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Nelson'S Sharp-Tailed Sparrow

Habitat

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

Range

Distributed across Norway and United States.

European otter

Sleek semi-aquatic mustelid found along clean rivers, streams, and coastlines across Europe and Asia. European otters can reach 1.3 meters in length and are highly skilled fish hunters, using sensitive whiskers to detect prey movements. Requiring unpolluted water with abundant fish, they are an indicator species for freshwater ecosystem health. Once nearly extinct in Western Europe from hunting and pollution, populations have recovered significantly following water quality improvements.