scaup
UK[skɔːp]US[skɑːp]
n
a diving duck of northern regions, the male of which typically has a dark head with a green or purple sheen.
Etymology
the term "scaup" is a fascinating example of a word derived from a creature's habitat and diet rather than its physical characteristics. it originates from the scots word "scaup," meaning a bed of shellfish, particularly mussels, which these ducks commonly feed upon by diving. this usage was then elliptically applied to the duck itself in the compound "scaup duck," which was later shortened to simply "scaup." the journey from a geographical/ecological term to an ornithological name illustrates how common names for animals often arise from direct human observation of their behavior in a specific locale.
Analysis
the word is a simplex form. it is a shortening of the scots term "scaup duck," where "scaup" refers to a bed of mussels, the bird's favored food.
Examples
a flock of greater scaup settled on the open water beyond the ice.
the lesser scaup is distinguished by a peaked head shape and a purplish sheen on its head.
birdwatchers gathered at the estuary hoping to spot the rare scaup among the more common pochards.