I've butchered my first three chickens and I'm not sure what to do about these feathers. Perhaps I didn't scald the birds hot enough, but they all have lots of hairlike feathers that don't come out easily. These are light-skinned, dark-feathered birds, so it's rather unappetizing to look at! If I just throw them in the stockpot, will those hairlike feathers come out in the stock? Should I just skin them before I cook them?