lake duck

Thân thiện

A lake duck dives underwater to catch a small fish.

Definition

Noun 1. A species of diving duck: "Lake duck" is a common name for a specific type of diving duck, Aythya affinis, native to North America. It is characterized by the male's distinctive purplish-iridescent head.

Usage and Examples

• Noun:
  • We spotted a large raft of lake ducks on the open water.
  • The male lake duck is easily identified by its dark head that shines with a purplish hue in the sunlight.
  • Lake ducks are often seen diving for aquatic plants and invertebrates.

Advanced Usage

• Scientific/Ornithological Context: In formal or scientific writing, the term "lesser scaup" is more precise and commonly used than the colloquial "lake duck."
  • The study focused on the migration patterns of the lesser scaup (Aythya affinis).

Variants and Related Words

• Lesser Scaup (n): The standard common name and a direct synonym for "lake duck."
• Scaup (n): The broader category of diving ducks that includes both the lesser scaup (lake duck) and the greater scaup.
• Bluebill (n): A regional or historical name sometimes used for scaup ducks, referring to their bluish-gray bill.

Synonyms

• Lesser scaup: The primary synonym.
• Little bluebill: A less common regional name.

Related Phrases and Terms

• Diving duck: The general ecological group to which the lake duck belongs, distinguished from dabbling ducks by their feeding behavior.
• Raft of ducks: A term for a large group of ducks resting on water, commonly used when observing species like the lake duck.

Học thuật

Noun

1. common scaup of North America; males have purplish heads

Từ đồng nghĩa

• lesser scaup
• lesser scaup duck
• Aythya affinis