Blind Small-eared Shrew vs Ring-necked Duck

Cryptotis niausa compared with Aythya collaris

Key Differences

• Blind Small-eared Shrew is Data Deficient while Ring-necked Duck is Least Concern.

Taxonomic Classification

Rank	Blind Small-eared Shrew	Ring-necked Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Soricomorpha (Soricomorpha)	Anseriformes (Anseriformes)
Family	Soricidae	Anatidae
Genus	Cryptotis	Aythya
Species	Cryptotis niausa	Aythya collaris

Evolutionary Relationship

Blind Small-eared Shrew and Ring-necked Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blind Small-eared Shrew

DD — Data Deficient

Ring-necked Duck

LC — Least Concern

Physical Characteristics

Attribute	Blind Small-eared Shrew	Ring-necked Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blind Small-eared Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Ring-necked Duck

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Blind Small-eared Shrew

The Blind Small-eared Shrew (Cryptotis niausa) is a species in the genus Cryptotis. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Ring-necked Duck

Ring-necked Duck (Aythya collaris) 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 2 countries:

🇨🇴 Colombia 🇪🇨 Ecuador