Homemade bird treats are a hit. I soaked pellets in water to make a paste, added bird seed, smeared on a thin apple slice (circles with the seed star), and dehydrated on high. Served in toys. They have two of these up and all 3 birds have been excitedly flying back and forth between them, though they've been fed already.
@tippitiwichet awwww, happy birdies!!