Buff-collared Nightjar vs Lesser Siren

Antrostomus ridgwayi compared with Siren intermedia

Taxonomic Classification

Rank	Buff-collared Nightjar	Lesser Siren
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Amphibia (Amphibians)
Order	Caprimulgiformes (Caprimulgiformes)	Caudata (Caudata)
Family	Caprimulgidae	Sirenidae
Genus	Antrostomus	Siren
Species	Antrostomus ridgwayi	Siren intermedia

Evolutionary Relationship

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

Conservation Status

Buff-collared Nightjar

LC — Least Concern

Lesser Siren

LC — Least Concern

Physical Characteristics

Attribute	Buff-collared Nightjar	Lesser Siren
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Buff-collared Nightjar

Habitat

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

Range

Found in Norway.

Lesser Siren

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Distributed across Belgium and Mexico.

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.