Sunflowers and corn. They go nuts over both.
Grow pumpkins. Seeds are great for them health wise.
Ah, now I can quote.
My input here is Sweet Meats squash.if I cut a pumpkin & cut a sweet meat, the birds eat the sweet meat in just a few days.......and let the pumpkin lay and only peck it after no more sweet meats.
Easier to grow than pumpkins also !!!!!!