Game of all types should be taken care of immediately !!! Last year I spoke to a woman who's son had taken his first goose. She asked about the "off " flavor. Getting some information from her I explained that with our early seasons [Sept] you could have a 85F day things spoil rapidly. He did not process it immediately , showing it off to neighbors etc. Pellets in the stomach or intestins release digestive enzymes and intestinal bacteria which spoil things even quicker. One time I had a large number of geese so I skinned them to cool them quicker If you want to pluck the feathers off do it right away, if you have a machine it's easy..... Split the skin from breastbone to vent and using a stick with a hook [or your hands] remove everything inside.It's as simple as that !! Like dressing out any bird or deer. Goose is one thing that improves with freezing ,even domestic goose. If you want to roast one pick a young one [the end of the breastbone will be flexible]. Otherwise cut it up in about 12 pieces and braise it.Brown the parts and add chopped onion ,carrots, celery and fruit [such as a good tart apple , or lemon,orange, dried cherries, raisins]