I buy a Cardinal mix. It's Sunflower seeds, Safflower seeds and Sunflower kernels. It's high in fat, 35 percent.
I mix it with Scratch Grains. Low fat 1.5 percent.
I mix a 7# bag of Cardinal mix into 25# of Scratch.
I scatter a heaping 1/4 cup measure in their pen once a day to my three 2 1/2...