hello from Pakistan.
well i am not that experienced hunter but shall try to provide u with the maximum that we do here when it comes to waterfowling.
we have large marshes and wetlands here in Pakistan and it provides us a lot of opportunities to shoot variety of ducks,ducks fly over Indus fly way/Green route/International Flyway no 7 to reach Pakistan.
the common species we get here are.
1) Mallard (not as common as in your area but a treat to shoot one)
5)teals only green wing.
8)red crested pochards
9)spot bill ducks
12)and a lot more i shall keep updating.
bar headed,gray lag,specks,geese also visit our areas.ruddy shelducks are also come.
Ive spent most of my life hunting, the rest Ive been wasted!