Ok as some of you know I'm new to ducklings. I have a 1 year old girl peking duck and two 3 week old ducks. The babies are the domestic mallards, rogen or Ruens I'm not really sure of the spelling. The Peking seems scared of the ducklings how is the best way to get them living together safely? Is there an age when it's safer or is it really nothing to worry about?