Im new to having ducks. I have 2 khaki Campbell ducks and would like to know the gender of them if possible. They are both almost 6wks old. 1 is lighter colored and slightly bigger with a pinkish/brown colored bill and dark bean. It peeps a lot and I have heard a couple of honks out of it but thats it. The dark one is smaller and peeps a lot no obvious honk or rasp. It has a pinkish/brown color bill and bean. The bigger light one is more calm when held but is still skittish. The dark one likes to fight and peck at you when you hold it. Both are very chirpy when you talk to them or give them new water, bedding or food. Im not sure what age they are suppose to get drake feather if they are male or color change in feathers.