Anonymous6: Jones is right. Ducks are among the few birds that have actual penes. Most of the time the penis is hidden inside the cloaca; it's only during coitus that it extends. In a similar vein, the interior of a female duck's vagina is a twisty maze of winding passages. Oh, and the externally visible balls are indeed part of the anthropomorphization and not ducklike.
MY TIME-SPACE CONTIN-
-LV