High mercury levels found in two duck species.

Most duck species breed once a year, choosing to do so in favourable conditions (spring/summer or wet seasons).

"Rape behavior" has been observed in a number of duck species.

The Greater Scaup is the second most common duck species.

The variety of water birds that nest here include coots, loons, mallards, and many other duck species.

This whistle is often called a 6-in-1 whistle, due to the fact that it can replicate six different duck species sounds.

On the other hand, poultry which is composed mostly of native chicken and duck species, are not grown in commercial quantity.

Many duck species are polygamous, with the drakes having no role in rearing the families.

Avihepadnaviruses have been detected in various duck species.

Mandarins are one of the few duck species which are not hunted for food - apparently they taste really bad!