Wiktionary
duckbills
n. (plural of duckbill English)
Usage examples of "duckbills".
The great herbivore herds, the duckbills and ankylosaurs, lifted their heads from their browsing and turned to face the south.
Thus the voices of the duckbills hooted mournfully across the misty plain.
They had duckbills and crests of different shapes on top of their heads.