Sally, don't know if you have any mesh type bags like the ones oranges or onions come in??? If so you can make 'chicken pancakes'... an invention of DH's in return for a joke I made about spoiling birds. Anyway, what he came up with was pancake batter (he did add extra eggs to increase protein content)... he added chopped up dried cranberries (left over from baking banana bread), raisins, rinsed canned corn and a cup or so of wild bird seed (which has hulled sunflower seeds and nuts in it). He cooked it on the skillet just like regular pancakes. And they looked like grainy pancakes. We gave them to the birds still slightly warm and they loved it. The pancake batter just made a convenient way to hold it together. You can feed them direct to the birds or rip them up a bit and stuff them into the orange bags to hang above their heads like a tether ball.
Suet blocks also can be entertaining.
Alternative or extra ingredients I have planned for future pancakes... mealworms, slightly crushed peanuts, sunflower seeds, oats or wheat grains, fine chopped apples pears or peaches, chopped hardboiled eggs, and any melon I had on hand (cantaloupe, honeydo, etc.)