My 5 muscovy ducklings turned out to be 4 drakes and 1 hen. I am trying to decide which drake to keep. I am basing this on behavior and looks. My 2 blue drakes are VERY flighty. They run when I move toward them. I have a black and white and a black barred too. The black and white was the first to eat from my hand and even after wing clipping returned for treats. I love the look of the barred though. My problem is that the barred drake's tail points downward. Instead of being in a straight line with his body. Here is a pic. Is this a defect? Should I exclude him from consideration?