What kind of Feed store has no idea what you are supposed to feed to a common farm animal? Cracked corn is about as appropriate as a single food source for ducks as it it is for humans. This store is clearly not knowledgable in their business. I'm sure this isn't this only issue.

BAD PLACE!!!! They will tell you anything and claim to be an authority... I just did a duck rescue which is so common this time o f year after people buy ducklings for Easter then dump them.. I called this store to see if they carry duck food. When asked what brand food it is, the lady said "CRACKED CORN">. !!! " All you need to feed them is cracked corn" I explained to her that cracked corn is NOT duck food.. She argued with me back and forth and then tried to justify it by saying even a vet told her cracked corn is what they are fed...and that ALL her customers use only that... I told her that I am part of a 6000 member duck rescue organization and that she really should never give that kind of wrong information to a new duck owner.... it will cost the lives of ducks who will become malnourished and get bone deformities etc from eating candy...which is all that corn really is to a duck!!.. She was very rude and almost hung up the phone instead of being concerned..