Hi there, I have a couple of khakis (5) That are four weeks old and just starting to grow feathers. Ugly lil' things they are now but anyways i noticed that one of them had a little quack at the end of it's chirp. Now i've heard that normally it the hens the quack and the drakes that have the raspy quack. But at this age? I did some experimenting and took her/his buddies away. Her chirp went into a full-on quack which is making me think its a hen..? Could i be right? Do ducks quack this young..? Any advice will be greatly appreciated!