I had the 5 ducklings and 2 goslings separate due to space issues. We started our mini kitchen remodel, so I took advantage of an empty and soon to be redone woodstove hearth. I had the ducklings and goslings together briefly in a kiddie pool and the goslings were chasing the ducklings and biting the backs of their necks whenever they tried to eat the grass. I was worried the ducks would get hurt. Once the goslings were gone, the poor little ducks were beside themselves. I was getting them new water, and had a visitor, looking for the geese. All together and happy. They get along fine in here, much better than in the circular brooder. Hope to get them outside with a heat lamp in a week or so, once my electric net gets here.