How can you tell the differences between male and female ducks? I have a Pekin and a runner. Is there a way to tell or do I need to wait and see if they will lay eggs to know. My two ducks seem very unsure of the world...is this normal. They just don't seem to roam and are more content to just sit. Also my runner will do nothing but sqwak if the Pekin has been taken somerwhere. The runner seems to thinks it is the shadow of the Pekin. Somewhat of the odd duck isn't it?