What the duck? Have a gander at this...

AS TRAFFIC jams go, this has to be one of the weirdest.

Motorists in Vietnam were recently brought to a halt by a huge flock of ducks crossing from one area of marshland to another. 

These bemused bikers filmed the crossing, which seemed to take forever.

And it wasn't just one group of the avians, either. They soon came across another canard crossing and the filming rider began herding the creatures from the road...