At least I think they are... It sounds a bit like a cut-off quack and then is followed by a loud rasping noise. Not a cough, which I assume would be the same for any other poultry, but this small quack followed by a stronger sound. Is it a sneeze? What causes a sneeze? Should I worry about it? Betsy seems to do it most often, but I swear that Sarah does it once in a while. I don't think Mikey has ever done it. Nobody is acting "off". Mikey is the biggest, maybe over 5 pounds (the standard says 5 pounds is ideal) Betsy the middle, and Sarah is the smallest.