We recently bought 4 "female" ducks from a guy on Craigslist- 2 buff and 2 fawn runners. The 2 buff I am not convinced are buff. They were sold to me as 3 month old females. As far as bill and feather coloring go, they appear female to me, but one of them appears to be getting a drake feather- that or bed head... again, feathering and bill colors are the same So- are these buff, and are either or both male??? Thank you so much!