Kleiner Abendsegler vs Kampfläufer

Nyctalus leisleri compared with Calidris pugnax

Key Differences

• Kleiner Abendsegler is Endangered while Kampfläufer is Least Concern.

Taxonomic Classification

Rank	Kleiner Abendsegler	Kampfläufer
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Mammalia (Säugetiere)	Aves (Vögel)
Order	Chiroptera (Fledertiere)	Charadriiformes (Regenpfeiferartige)
Family	Vespertilionidae	Scolopacidae
Genus	Nyctalus	Calidris
Species	Nyctalus leisleri	Calidris pugnax

Evolutionary Relationship

Kleiner Abendsegler and Kampfläufer share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Kleiner Abendsegler

EN — Endangered

Kampfläufer

LC — Least Concern

Physical Characteristics

Attribute	Kleiner Abendsegler	Kampfläufer
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Kleiner Abendsegler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Luxembourg, Sweden, and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Kampfläufer

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, Venezuela).

Kampfläufer

Ruff (Calidris pugnax) 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 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden