Adder’S-Mouth vs Bare-legged Swiftlet

Malaxis bayardii compared with Aerodramus nuditarsus

Key Differences

• Adder’S-Mouth is Critically Endangered while Bare-legged Swiftlet is Least Concern.

Taxonomic Classification

Rank	Adder’S-Mouth	Bare-legged Swiftlet
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Aves (Birds)
Order	Asparagales (Asparagales)	Apodiformes (Apodiformes)
Family	Orchidaceae	Apodidae
Genus	Malaxis	Aerodramus
Species	Malaxis bayardii	Aerodramus nuditarsus

Conservation Status

Adder’S-Mouth

CR — Critically Endangered

Bare-legged Swiftlet

LC — Least Concern

Physical Characteristics

Attribute	Adder’S-Mouth	Bare-legged Swiftlet
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Adder’S-Mouth

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Canada and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Bare-legged Swiftlet

Habitat

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

Range

Found in Norway.

Adder’S-Mouth

The Adder’S-Mouth (Malaxis bayardii) is a species in the genus Malaxis. It is currently classified as Critically Endangered on the IUCN Red List. This species inhabits Typically found in grasslands, wetlands, forests, and cultivated landscapes, found across Canada and United States.

Bare-legged Swiftlet

The Bare-legged Swiftlet (Aerodramus nuditarsus) is a species in the genus Aerodramus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.