I would like to know what color a Sebastopol goose egg is. I tried looking it up but had no luck. How big are the eggs? I ask because I have two 3 1/2 month old Sebbies and I'm hoping one is a girl. I'm pretty sure she is and the other is male. I don't know when they lay if they lay at all this year. I have ducks with them and they are laying eggs. I have a pair of Pekin ducks and I can't tell yet what they are, male or female. Thing is, someone is laying a big egg and I don't know who it is. The Indian runners lay a medium size egg and I know the Pekins lay a larger jumbo size compared to a chicken egg. I have no idea what a goose egg looks like. I am stumped at this point. I have not seen any mating being done by the pekin or the sebbies. Indian runners............ whoosh...... they are mating. Those boys are beasts but they aren't bothering the 3 1/2 month old pekin ducks or sebbies..... yet. All the eggs are white.