I have a duckling that for the time being stays inside. Just a few moments ago when I came home I came into the room he stays in a when I turned on the light he started shaking and flopping around. It took him bout 10 minutes to revover from this. He has never done this before and I'm worried something might be wrong with him. I`ve never owned a duck before so I'm not sure what to do. He seems to be doing fine now but I'm still concerened.