Hello! I have 2 Pekin ducks, which I thought were both boys until today... when I found an egg in their house! I went back and compared them to other photos, and I think I may have 1 boy and 1 girl, but I was hoping someone here would be able to confirm it for me.
Agreed, the first pic looks like it shows a drake feather and the second doesn't... I have a male and female Jumbo Pekin and my drake doesn't have the curled feather; my female is slightly smaller than the drake, but the best indicator for me was the voice. My female developed a clear quack whereas my drake's voice is lower and softer.