Blacktail spurdog vs Buff-collared Nightjar

Squalus melanurus compared with Antrostomus ridgwayi

Key Differences

• Blacktail spurdog is Data Deficient while Buff-collared Nightjar is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Buff-collared Nightjar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Aves (Birds)
Order	Squaliformes (Squaliformes)	Caprimulgiformes (Caprimulgiformes)
Family	Squalidae	Caprimulgidae
Genus	Squalus	Antrostomus
Species	Squalus melanurus	Antrostomus ridgwayi

Evolutionary Relationship

Blacktail spurdog and Buff-collared Nightjar share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blacktail spurdog

DD — Data Deficient

Buff-collared Nightjar

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Buff-collared Nightjar
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Buff-collared Nightjar

Habitat

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

Range

Found in Norway.

Blacktail spurdog

The Blacktail spurdog (Squalus melanurus) is a species in the genus Squalus. It is currently classified as Data Deficient on the IUCN Red List.

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.