A friend of mine has two Chinese geese that are about a year old. We went over to see them because his geese are from the same family as our geese, so we think they are cousins. I think his are both boys. One of them doesn't look well. He has a dirty vent, mussed up feathers and is very thin compared to ours. He also has a very hard time walking and falls down onto his "knees" a lot. His joints look swollen and they said he has been like this for a while. It almost looked like arthritis.They love their geese very much have called the vet several times but there aren't any vets here with goose experience. Sorry these photos aren't great, he was scared of me! If anyone has any suggestions, I'd love to hear them.