Definition

Noun: * A large, fish-eating diving duck (Mergus merganser) of the Northern Hemisphere, characterized by a long, slender, serrated bill adapted for catching and holding slippery prey. The male has a dark green head, white body, and black back, while the female has a reddish-brown head and a grayish body. It is commonly known as the common merganser or goosander.

Usage

• The term mergus merganser is the scientific binomial name (genus and species) used for precise biological classification. In everyday language, the common names "common merganser" or "goosander" are more frequently used.
• It is used to specifically identify this species of duck, distinguishing it from other mergansers like the red-breasted merganser () or the hooded merganser ().

Examples

• A pair of mergus merganser were spotted diving for fish in the river.
• The study focused on the migration patterns of Mergus merganser across North America.
• Birdwatchers were excited to see the distinctive silhouette of a common merganser, its long bill clearly visible.

Advanced Usage

• In ornithological texts, the full scientific name is often italicized: Mergus merganser.
• The genus name refers to the entire group of diving ducks known as mergansers or sawbills.

Variants and Related Words

• Common merganser (n): The standard English name for in North America and widely used elsewhere.
• Goosander (n): The standard English name for used primarily in Europe.
• Merganser (n): The common name for any duck of the genus or the subfamily Merginae, characterized by a slender, serrated bill.
• Sawbill (n): An informal name for mergansers, referring to the serrated edges of their bills.

Synonyms

• Common merganser
• Goosander

Related Phrases / Terms

• Fish-eating duck: A descriptive term for its primary diet.
• Diving duck: A category of ducks to which it belongs, which forage by diving underwater.
• Serrated bill: A key physical characteristic of the species.

Noun

1. common merganser of Europe and North America