aythya affinis

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Definitions from WordNet

Noun aythya affinis has 1 sense

lesser scaup, lesser scaup duck, lake duck, Aythya affinis - common scaup of North America; males have purplish heads
--₁ is a kind of scaup, scaup duck, bluebill, broadbill

Definitions from the Web

Aythya affinis

Description:

Aythya affinis is a species of diving duck native to North America. Also known as the lesser scaup, it is a medium-sized duck with a black head and back, a white breast and sides, and a bluish-gray bill.

Sense 1:

Noun: A species of diving duck.

Example Sentence: The Aythya affinis is commonly found in freshwater lakes across North America.

Sense 2:

Adjective: Referring to or characteristic of the Aythya affinis.

Example Sentence: The Aythya affinis population has been declining due to habitat loss.

Sense 3:

Popular Usage: Commonly known as the lesser scaup.

Example Sentence: Many bird enthusiasts enjoy observing and photographing the lesser scaup, also known as Aythya affinis.

Local Usage:

Noun: A local nickname for the Aythya affinis in certain regions.

Example Sentence: In the local dialect, the Aythya affinis is often called the "little bluebill."