Remove the breasts from the partridges after they have been baked or roasted. Chop the meat rather fine; reduce the sardines to a paste. While you are mashing the sardines, add gradually the butter, red pepper and salt. Spread the bread first with the sardine paste; then sprinkle over the chopped game; dust this with salt and a little pepper; cover with another slice of bread, press lightly; trim into shape.