can someone help me sex my three embden geese I have had them since September and the people I got them from didn’t know the genders I am thinking male I know there is know way of truly knowing until one lays eggs or vent sexing but I read that you can sex them by the ways they stand I am not able to I can’t tell the difference in other people’s pics one of them has a little gray spot on one feather but I don’t know what that’s about