I have chickens, ducks, and geese all in one coop and they get along very well. But its probably because they've been together since they were all still babies.
I have 2 white Chinese geese. I raised them ever since they were goslings. Both are very sweet and nice. A little timid of people but that's all. They might be aggressive if I got them as adults though. SO I guess it just depends on what age you get them at. Also if you don't have one and are...