巨頭鵲鴨 vs Common Metad

Bucephala albeola compared with Millardia meltada

Key Differences

• 巨頭鵲鴨 is Not Evaluated while Common Metad is Least Concern.

Taxonomic Classification

Rank	巨頭鵲鴨	Common Metad
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Aves (鳥綱)	Mammalia (哺乳動物)
Order	Anseriformes (雁形目)	Rodentia (啮齿目)
Family	Anatidae	Muridae (Mice & Rats)
Genus	Bucephala	Millardia
Species	Bucephala albeola	Millardia meltada

Evolutionary Relationship

巨頭鵲鴨 and Common Metad share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

巨頭鵲鴨

NE — Not Evaluated

Common Metad

LC — Least Concern

Physical Characteristics

Attribute	巨頭鵲鴨	Common Metad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

巨頭鵲鴨

Habitat

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

Range

Found across Europe (11 countries) and North America (United States).

Common Metad

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

巨頭鵲鴨

棉头鸭（Bucephala albeola）在IUCN红色名录中被列为未评估（NE）。尚未依照IUCN红色名录标准进行评估，保护状况有待确定。

Common Metad

The Common Metad (<em>Millardia meltada</em>) is a rodent belonging to the genus <em>Millardia</em> within the family Muridae. As a member of the Old World rats and mice, this species is typically found in diverse terrestrial and aquatic ecosystems across its range. The Common Metad is classified as Least Concern on the IUCN Red List, indicating that its populations are currently stable and not facing immediate extinction risk. Detailed biological traits such as body length, weight, and lifespan have not been widely documented for this species in available records. Its taxonomy places it within the order Rodentia, which encompasses a broad array of gnawing mammals adapted to a wide variety of ecological niches. While specific dietary habits are not well characterized in the available data, members of the genus <em>Millardia</em> are generally understood to be omnivorous, feeding on plant material and invertebrates typical of their habitat. Ongoing monitoring is important for ensuring this species maintains its current conservation standing.