Male mallards make a softer, rasping sound ... of human actions on the mallard’s biology. Until the early 1900s, for example, this most common species of duck was actually quite uncommon ...

Black ducks are often found mixed in with flocks of mallards. They also make very similar sounds to their mallard cousins. The hens quack, and the drakes have a high, quiet, nasal quack.

TAMPA, Fla. -- Looking to recapture some of last week's magic -- in which a mallard duck appeared on the field in a 48-14 victory over the Carolina Panthers-- the Tampa Bay Buccaneers enlisted the ...