Lesser Scaup

Lesser Scaup

Aythya affinis

Least Concern

Aves · Anseriformes · Anatidae

About

The lesser scaup is a small North American diving duck that migrates south as far as Central America in winter. It is colloquially known as the little bluebill or broadbill because of its distinctive blue bill. The origin of the name scaup may stem from the bird's preference for feeding on scalp—the Scottish word for clams, oysters, and mussels; however, some credit it to the female's discordant scaup call as the name's source. It is apparently a very close relative of the Holarctic greater scaup or "bluebill", with which it forms a superspecies. The scientific name is derived from Ancient Greek and Latin, with aithuia being an Ancient Greek term for an unidentified seabird, used by Hesychius and Aristotle, among other authors, and affinis, Latin for "related to", from the lesser scaup's resemblance to the greater scaup.

Fun Fact

In theory, each and every Aythya species is able to produce potentially fertile hybrids with any other, though due to their different ranges and behavioral cues given during courtship most of these hybrids are only known from birds kept in captivity without conspecific mates.

Quick Facts

Habitat

To be updated

Diet

Eats larger food items on average, and the species are sympatric in part of their range and presumably have been for millennia without any problems due to competition.

Lifespan

To be updated

Threats

  • Habitat Change
  • Human Disturbance