I have 2 rouen duckling. I was told they are male and female. They are about 3 weeks old now and are beginning to get tail feathers and some feathers on their chests and above their wings. They both have the same shape headband are about the same size so I am questioning their sexing. All of the feathers o. Both of them are coming in black and brown. Does a drake start out with the same color feathers as the hen or does he come out grey? This is my first time with ducks.