Both ducks are around 6 weeks old. The chocolate one is three days older than the silver? lavender? Lilac? Blue?, I don't know the recognized colors, one. They are feathering differently, the chocolate one feathed out above the wings a couple weeks ago, then some tail feathers, next the head. The silver one feathered out above the wings about a week ago along with the tail and the head is just starting to feather out. What gender do you think they are? This is the first picture. The silver one hatched the day before. This is between 1 and 2 weeks I think. From this morning.