Buff-collared Nightjar vs Lesser Scaup

Antrostomus ridgwayi compared with Aythya affinis

Taxonomic Classification

Rank	Buff-collared Nightjar	Lesser Scaup
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Caprimulgiformes (Caprimulgiformes)	Anseriformes (Anseriformes)
Family	Caprimulgidae	Anatidae
Genus	Antrostomus	Aythya
Species	Antrostomus ridgwayi	Aythya affinis

Evolutionary Relationship

Buff-collared Nightjar and Lesser Scaup share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Buff-collared Nightjar

LC — Least Concern

Lesser Scaup

LC — Least Concern

Physical Characteristics

Attribute	Buff-collared Nightjar	Lesser Scaup
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 Scaup

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

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.

Lesser Scaup

Lesser Scaup (Aythya affinis) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway