In my pantry sits a tub of lard I bought years ago. It was intended to make birdseed balls with. I am not really sure if lard is suitable for birds, though. Our local Piggly Wiggly sells beef suet by the log. They are ideal for making birdseed ornaments, although I guess you can just hang them outside as is. But where's the fun in that?
We melted the 22 oz. suet log over medium heat and stirred in three cups of birdseed. I set out three extra large cookie cutters partially wrapped in aluminum foil on a baking pan, as well as an assortment of little molds lined with plastic wrap. We poured in the melted suet/seed mixture and set the baking pan in the freezer.
After about two hours I took them out and let them thaw out just enough to make it easier to release the ornaments from the mold. I removed the little pieces of a drinking straw to make a hole and strung the ornaments on some butcher's twine. Aren't they lovely? I have already spotted a little chickadee munching on one.