Place the goose legs and thighs in a large pot and cover with water. Cover and bring to a simmer over medium-high heat. Cook until fork tender. This can take a long time (between 2 to 3 and a half hours). Add water to the pot if necessary. Remove the meat from the pot, strain, and reserve the broth.
Shred the goose meat on a cutting board or in a large bowl and set aside.
In a heavy pot or dutch oven add all of the ingredients except the sausage, shredded goose pieces and goose broth.
Pour enough broth into the pot so that the ingredients are covered by around a 1/2 inch.
Bring to a slow simmer and partially cover with a lid.
When the potatoes are near fork tender, add the remaining ingredients.
Gently simmer on medium low heat until the potatoes are tender.
Season with salt and ground black pepper to taste.
Garnish with finely chopped herbs such as fresh rosemary, chives, parsley, or tarragon.
Drizzle with a little extra virgin olive oil and serve with crusty bread.