Buff-collared Nightjar vs European otter

Antrostomus ridgwayi compared with Lutra lutra

Key Differences

• Buff-collared Nightjar is Least Concern while European otter is Vulnerable.

Taxonomic Classification

Rank	Buff-collared Nightjar	European otter
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum same	Chordata (रज्जुकी)	Chordata (रज्जुकी)
Class	Aves (पक्षी)	Mammalia (स्तनधारी)
Order	Caprimulgiformes (Caprimulgiformes)	Carnivora (मांसाहारी गण)
Family	Caprimulgidae	Mustelidae (Weasels & Otters)
Genus	Antrostomus	Lutra (Otters)
Species	Antrostomus ridgwayi	Lutra lutra

Evolutionary Relationship

Buff-collared Nightjar and European otter share a common ancestor at the Phylum level: Chordata. (रज्जुकी)

Conservation Status

Buff-collared Nightjar

LC — Least Concern

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	Buff-collared Nightjar	European otter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

Buff-collared Nightjar

Habitat

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

Range

Found in Norway.

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.

Buff-collared Nightjar

The Buff-Collared Nightjar (Antrostomus ridgwayi) is a species in the genus Antrostomus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway