PREMIUM SQUIRREL DIET. Chuckanut premium squirrel diet is good for squirrels and wild birds. Squirrels will eat chuckanut on the spot due to its soft shell, rather than burying food.. UPC : 790004020028. Size : 3 POUND. Length : 1.104. Width : 0.792. Height : 0.229. Product Type : Wild Bird Food - Wild Bird Food / Squirrel - Wildlife Food. Shipping Dimensions: 1.104x0.792x0.229