Besides all the other problems I have already told you, that bird is a grease ball. The skin has grease all over it and that is why it looks like that. Before it is mounted, and degreased it has to be cleaned with dawn and or white gas to remove all the grease that gets into the feathers. Then rinse and do it over and over until the rinse is clean and there is no more grease on the feathers. But if the grease is not removed from the inside of the bird before this part, you are just wasting your time. Please buy the breakthrough manual on waterfowl, it will really help you out. Good luck.