Olive-gray Thomasomys vs Ring-necked Duck

Thomasomys cinereus compared with Aythya collaris

Taxonomic Classification

Rank	Olive-gray Thomasomys	Ring-necked Duck
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Mammalia (lớp Thú)	Aves (chim)
Order	Rodentia (Bộ Gặm nhấm)	Anseriformes (bộ Ngỗng)
Family	Cricetidae	Anatidae
Genus	Thomasomys	Aythya
Species	Thomasomys cinereus	Aythya collaris

Evolutionary Relationship

Olive-gray Thomasomys and Ring-necked Duck share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Olive-gray Thomasomys

LC — Least Concern

Ring-necked Duck

LC — Least Concern

Physical Characteristics

Attribute	Olive-gray Thomasomys	Ring-necked Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Olive-gray Thomasomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in 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).

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 1 countries:

🇪🇨 Ecuador