Mallard Duck - Anas platyrhynchos platyrhinchos

The Mallard is the most common duck in the world, but according to the field guide that i most commonly use, they are uncommon in Taiwan.  

 Mallard Duck - Anas platyrhynchos platyrhynchos

Shutter Speed:  1/1000 sec.  f/7.1  ISO: 200  400 mm

 Shutter Speed:  1/1000 sec.  f/6.3  ISO: 250  400 mm

 Shutter Speed:  1/1000  f/6.3  ISO: 250  400 mm

Shutter Speed:  1/1000 sec.  f/7.1  ISO: 200  400 mm