From a Bagel
You will need a bagel, string of yarn, plastic knife, peanut butter, and birdseed. First, cut the bagel in half and spread peanut butter on the open-faced side. Spread the birdseed on a paper plate and press the bagel face-down over it, patting it gently. Tie the yarn through the loop of the bagel and suspend it from a high point in your garden.