I put my three 8 wk old ducklings in the bathtub for their bath. The water was just deep enough that if they wanted to swim all they had to do was lift up their feet. If they didn't want to swim they could just stand up. I left them to bathe while I made dinner. My 5 yr old son came running into the kitchen and told me to follow him. I opened the bathroom door and there she was. Her body was floating but her beak was under water. I tried to resucitate her. All I heard was bubbling in her chest. I held her upside down to get as much water out as I could. She was gone. The two survivors were huddled up with eachother. I wrapped the poor chocolate runner up in a towel and drained the tub. I took the little duck to my husband and told him I killed his duck. I handed her over to him an went and got the other two out of the tub. I know not to allow young ducks to swim until they are a week or so old. But eight weekers? I thought they would be ok. They have most of their adult feathers. I just don't understand it. I shouldn't have left them alone. When is it okay to let them swim alone? These were my first ducks. I got them when they were just two days old. I just don't understand.