Hadn't heard it with a goose, but a rabbit of mine did the same, I think it might have been too old or something, the rabbit was at least, maybe that was the gooses problem. I know some animals aren't supposed to naturally give birth after a few years, its just unhealthy for them, but seeing as geese lay eggs, I don't see what the problem would be, seeing as it has prolly done it it's whole life.

-C