<i>Aythya affinis</i>
Length: 16.5"
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The Lesser Scaup is a diving duck and is very similar to the Greater Scaup.
The Lesser Scaup is slightly smaller, has a point at the top of the head,
and has a smaller black tip on the bill.
They are quite common in the Bay Area.
They are divers and mainly eat mollusks and aquatic plants.
One picture below shows a male eating a mollusk.
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