Buff-collared Nightjar vs Ruddy Shelduck

Antrostomus ridgwayi compared with Tadorna ferruginea

Key Differences

• Buff-collared Nightjar is Least Concern while Ruddy Shelduck is Not Evaluated.

Taxonomic Classification

Rank	Buff-collared Nightjar	Ruddy Shelduck
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	Tadorna
Species	Antrostomus ridgwayi	Tadorna ferruginea

Evolutionary Relationship

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

Conservation Status

Buff-collared Nightjar

LC — Least Concern

Ruddy Shelduck

NE — Not Evaluated

Physical Characteristics

Attribute	Buff-collared Nightjar	Ruddy Shelduck
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.

Ruddy Shelduck

Habitat

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

Range

Widely distributed across Asia (Israel, Taiwan), Europe (19 countries), and North America (United States).

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.

Ruddy Shelduck

Ruddy Shelduck (Tadorna ferruginea) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway