All most of us can share is our own experience and I know for a fact my geese could not be penned or housed with ducks or chickens been raised with them too. In the half acre we have fenced they geese tolerate the others as long as the rest of the flock keep a fair distance. But I would not trust my geese with goslings penned up or housed with other poultry. i have to go into my goose house daily and scoop out the poop and i have one brooding on :"fake" eggs. I feel just because they lay doesn't mean they have to hatch. so mine are getting fake ceramic goose eggs. I have to be realistic about how many I can house and feed. The broody pitches a fit the rest come running but I make them stay outside till I am done. I even lift her off the nest to make sure no new eggs have been laid. and yes I do have pinch marks from where the female has bit me, No I won't tolerate my gander biting me but I know if I mess with a broody I'm going to get pinched. It's important they have "as" clean as possible sleeping and brooding quarters for their health and the health of the goslings and those that are in there with them. So if you can separate them into sections that would probably be best. have you thought about what you'll do with the goslings after hatch. keep, sell, eat?Thanks Mama Kitty! They're kept in separate pens right now, since we had our own coop and brought it with us. I've kept our girls in their coop, and the other birds in their coop. They take turns getting to free range.
Thanks for the advice Miss Lydia! Maybe I'll see if I can divide the pen somehow to keep the geese separate from the other birds. This is the set up I inherited from the previous owners, and they said they've always had all the birds together. But I have no idea if they ever had goslings either. The interior of the coop (where the goose is with the eggs) is kind of a mess. The previous owners converted an old greenhouse into the coop, but they didn't do much as far as creating good space for the birds. So I'll see what I can do for them.