Make a pine cone bird feeder. Mix the peanut butter and cornmeal in a bowl. Smear the mixture on a pine cone, getting it deep into the cracks. Then roll the pine cone in bird seed, which will stick to the peanut butter mixture. Tie the string to the pine cone, and hang it from a branch outside your window.
Peanuts are high in fat and protein.
Leave enough string so you can hang the feeder outside. For an even better bird treat, ask an adult to help you find and buy a kind of fat called suet at the grocery store, near the fruit and vegetables. With an adult's help, melt the suet over low heat in a double boiler on the stove. Remove it from the heat and let it cool. As the suet starts to harden again, stick peanuts or seeds into the suet.