plural of duck-billed dinosaur

(informal) Any ornithopod dinosaur of the family Hadrosauridae.

Ellipsis of if it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck.

present participle of hunt where the ducks are

(idiomatic) To seek opportunities or results in situations or places where they are most likely to be found.

(US, slang, vulgar) Extremely tight (in various senses: secure, stingy, etc.).

plural of duck's-bill limpet

A limpet of the genus Scutus.

plural of long-tailed duck

An Arctic sea bird, Clangula hyemalis.