Goose Sitting on Nest-Don't know if eggs are fertile

[Sneakyturtle]

Hello, I have a sebastopol goose who is sitting on a nest, but I don't think the eggs are fertile. I have never seen my gander try to mate with her. I have 7 female ducks, 2 female geese, and 1 gander. I think the gander thinks he's a duck because I have only ever seen him try to mate with my ducks. What is the likelihood that any of these goose eggs are fertile considering I have never seen the gander mate with a goose?

 

[fowltemptress]

Let them incubate for a few days before candling them and you'll have your answer.