Delight your wild songbirds by hanging up this three tiered birdseed cake feeder in your garden! There are three birdseed blends in this all natural feeder, the base in a black oil sunflower seed, pumpkin seed, peanut and dried cranberry mix that the woodpeckers and blue jays like. The middle cake is my standard mix which had everything, a high nutrient blend with dried fruit and nuts added. The top is a pure nyjer see cake ready to tempt the finch varieties who prefer the smaller dense black thistle seeds. The base is an untreated natural oak slice and the string is a twine, all natural and perfectly fine to just leave outdoors once the birds have eaten. The string will become nesting material for all sorts of critters, and the wood slices can just be.... wood... or pick it up and use as a coaster or a craft!