Where did you purchase your duck from? I've heard of a lot of people in ny area whose ducklings that were purchased from our TSC around Easter time have died for no reason whatsoever. My neighbor purchased the last 8 ducklings that they had marked down for $10 total. She informed me yesterday that all but 1 have died. They have been kept indoors in a normal manner. She's an experience duck and chicken owner so she knows exactly what she's doing.