As slow and boring as it might sound , I find success with sitting on the ground in a small space ( how small or big depending on how frightened they are initially ) with ducks that are hungry and ready to eat.. food in hand. the smaller and quieter you are , the more food you have , the less fear they will have. with several times of introducing soft talk as they are enjoying favorite treats or foods either a foot away , at your feet or in your hand- whichever they will be comfortable to start with. you will see that each session ( which should be brief- possibly right before a naturally occuring positive reinforcment example: the morning let out, pool time,) they will view you as non threatening, better than average food source. soon just your soft talk alone will make them think treats and or food will follow. eventually you fade out food as a constant reward- but the bond does not fade. ducks hate to be chased, held down or forced to do anything. also if they are not domesticated ducks, and are from the wild you will have a much harder time ( its instinct) and i personally think in groups they are harder to tame because of a sort of " group panic mode". if you have tried methods that have stressed them it may take you longer , but its certainly not impossible. remember stay ground level, go slow , let them come to you until you see progress-talk soft and lots of goodies- worms feeder fish, cream cheese , chicken feed, duck chow , etc.
good luck! hope this helps
