Buff-collared Nightjar vs large tortoiseshell

Antrostomus ridgwayi compared with Nymphalis polychloros

Key Differences

• Buff-collared Nightjar is Least Concern while large tortoiseshell is Critically Endangered.

Taxonomic Classification

Rank	Buff-collared Nightjar	large tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Aves (Birds)	Insecta (Insects)
Order	Caprimulgiformes (Caprimulgiformes)	Lepidoptera (Butterflies & Moths)
Family	Caprimulgidae	Nymphalidae (Brush-footed Butterflies)
Genus	Antrostomus	Nymphalis
Species	Antrostomus ridgwayi	Nymphalis polychloros

Evolutionary Relationship

Buff-collared Nightjar and large tortoiseshell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Buff-collared Nightjar

LC — Least Concern

large tortoiseshell

CR — Critically Endangered

Physical Characteristics

Attribute	Buff-collared Nightjar	large tortoiseshell
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.

large tortoiseshell

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 9 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (39 countries). Currently classified as Critically Endangered 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.

large tortoiseshell

large tortoiseshell (Nymphalis polychloros) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway