Wild Ducks Couple

The Mallard  or Wild Duck is a dabbling duck which breeds throughout the temperate and subtropical Americas, Europe, Asia, and North Africa, and has been introduced to New Zealand and Australia. This duck belongs to the subfamily Anatinae of the waterfowl family Anatidae.
Mallards usually form pairs (in October and November) only until the female lays eggs at the start of nesting season which is around the beginning of spring, at which time she is left by the male who joins up with other males to await the moulting period which begins in June.  
(Text from :http://en.wikipedia.org/wiki/Mallard )

Have been seeing this couple for a few weeks in the same spot, doesn't seem like they have built their nest there, as it is not really a suitable spot for nesting, the place is too open.....