Time will tell. I have 5, 2wk old Scovie ducklings that have color tipped tails. Two will be blues and one is definitly black but one (possibly 2) seriously looks chocolate. The drake is black and the duck is blue w/white head. I went and took a closer look at Gwen after looking at the ducklings tail(3 or 4 times) and now am thinking she may have some chocolate genes. Some of the feathering on her chest below the white of her neck has a chocolate cast to it. It blends in well with the dark blue/grey so you don't notice it until she stands in the light & you look for it(maybe I'm just seeing things) I am trying not to get toooo excited since they are so young. Now I will probably be following them around every chance I get looking at those tail feathers. Gwen will not be pleased!