Hello
I'm new to BYC

I have two runner ducks, I don't know much about them as I adopted them at 5 weeks old from a children's nursery where they were hatched.
I was wondering if any of you might be able to help me work out their gender, I think I have one of each as their tails look quite different but neither have curly up feathers yet which is all googles come up with for identifying drakes. I also tried to tell by the noise they make as I found something on Google about the volume and pitch of their quacks but mine both just gave me a loud honk when I tried :S
This is a picture of their tails
I'm thinking top one male, bottom one female?
Thanks Hazel