I have six ducks and in the past they have all quacked up a storm. They really seem to like to hear themselves chatter. One of the Blue Swedish ducks has, over the last couple of days, just been able to barely make a raspy peeping quack. Other than they she seems to be fine. Eats well, runs around with the rest of them, forages just fine. In fact, she is the fattest of the Blue Swedish that I have. Do ducks loose their voice or get quack-colds or something. Is there something I should be doing. The only thing that is not the same has been the weather. It has been dancing with 100+ the last few days.