Any kind of worms or crickets is excellent protein for all kinds of birdlife, but can become pricey, unless they get most of it through foraging, Corn is cheaper and is widely used for fattening all sorts of livestock, just try to avoid any GMO corn. I have also found that my turkeys are going crazy for whole Oats, so I am mixing Oats, Whole Corn, Mixed Grains and 22% protein Gamebird & Turkey Grower, With a good hand full of Boss. I really have no experiance with Alfafa cubes. I have used alfafa hay for my meat rabbits, because it has long fiber they need for lower gut health. What is the difference between the cubes and the hay? Thanks,
Celie