Black-Necked Grebe vs Caspian Shrew

Podiceps nigricollis compared with Crocidura caspica

Key Differences

• Black-Necked Grebe is Endangered while Caspian Shrew is Data Deficient.

Taxonomic Classification

Rank	Black-Necked Grebe	Caspian Shrew
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Podicipediformes (Podicipediformes)	Soricomorpha (Soricomorpha)
Family	Podicipedidae	Soricidae
Genus	Podiceps	Crocidura
Species	Podiceps nigricollis	Crocidura caspica

Evolutionary Relationship

Black-Necked Grebe and Caspian Shrew share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-Necked Grebe

EN — Endangered

Caspian Shrew

DD — Data Deficient

Physical Characteristics

Attribute	Black-Necked Grebe	Caspian Shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-Necked Grebe

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (5 countries) and North America (United States). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Caspian Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Black-Necked Grebe

Black-Necked Grebe (Podiceps nigricollis) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Caspian Shrew

The Caspian Shrew (Crocidura caspica) is a species in the genus Crocidura. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.