Is feeding ducks bread bad??

[whatdidyousay!]

I feed my chickens bread now and again. It's only bad if they eat it too often. Like at the park where everybody feed them bread.

That is what I am talking about , I bring my dog for a walk everyday at the frog pond and I will see people coming one after another feeding the ducks bread. There is one couple that feed the ducks everyday and they bring a huge bag of bread to feed the ducks. If a person walk pass the pond with a bag the ducks will think they're going to be feed and they start swim or fly toward the person . The ducks are more tame than wild and that is not good .