Hello, Never had geese before. We got our first 3 goslings in April from a private party that was advertising them as Toulouse Geese. Now the geese are full grown and we realized that they are not Toulouses. Based on pictures we have found around, we think they are either Chinese Brown Geese or African Geese. They could also be a mix since the people we got them from had a lot of different geese in the same enclosure. Does anyone have any ideas based on the attached pictures about the breed? We are also not sure if they are males or females. All three have the bumps on their head but one is behaving slightly different then the others. It is less aggressive but also less friendly and less chatty then the other two. The first picture, the one with all three geese on the driveway was taken about a month ago, their bumps grew quite a bit since then. In this picture, the goose that is different a little is the first on the left. She is also by herself in the second picture. Based on behavior she could be a female but the bump is quite big. We have never seen her hiss or charge anyone/anything while the other two are quite good at it. We have seen all 3 geese hump each other around in the pool in all kinds of combinations so I am not sure that is relevant neither Is there anything we can do/try to determine for sure their gender?