After watching some videos of welshies online I'm concerned I have all male ducks as they do not seem to have the distinctive quacks that I heard in the videos. Right now they are all 12 weeks old, I know to keep an eye out for the curly tail feather as it is a dead give away for a male. When they were ducklings the light/dark color beak made me think I had 3 girls and one boy. Here they are eating some dandelion greens does anyone have any ideas? Thanks for your help.