Well I am having some real hope for my current nest, my little mama is setting on 15 or so eggs that are due the 1st - 5th of may or so. They are all mutts, but I dont want to keep any boys, just the girls. So... Should I try and vent sex them and sell the male ducklings or wait till they are a few months and feathered? I would think people would be more likely to buy ducklings, but I also dont want to give someone a girl when they thought it as a boy. Any advice??