Hi- I have 10 2 week old babies. They are all adorable and most everyone now has a prickly tummy, a few tail feathers, and bald shoulders. I ordered a straight run (just using them for company so I didn't care too much male or female). However, I have 2 that are significantly smaller than the other 8. This is my first time raising ducks, but everything I have read says that you really can not tell drakes from ducks till about 4-6 weeks. I am worried though that these are my only 2 ducks. I dont want the males to kill them trying to mate them all the time. Any advice or tips?