A mallard:
Olympus Stylus 1s, 300mm, ISO200, f8, 1/80s
A captive blue bird of unknown make and model:
Olympus Stylus 1s, 300mm, ISO100, f2.8, 1/500s
This Muscovy duck didn't want its photo taken, I think:
Olympus Stylus 1s, 300mm, ISO200, f8, 1/250s
There's always one.
For more funny duck poses, you may want to look here.