If fed on grass, veggies, bugs and other non grain foods the fat is entirly different. The meat you buy in stores even if grass fed is fed grain for a period before slaughter changing the makeup of it even on a visual level. A goose that was kept outside its whole life and never fed grain will have far less fat and even what it has will be clear or light in color. Same with most every animal but unless you know someone raising grass fed you can't get meat that has never eaten corn which WILL raise your cholesterol and clog your arteries.