What changes the food answer
Use fruit sparingly unless the species has a specific diet need. For many parrots, vegetables and staple foods should matter more than fruit.
Sugar adds up
Even natural sugar can shift the diet when a bird learns to wait for sweet pieces instead of eating the staple food.
Prep matters
Wash fruit, remove unsafe pits or seeds where needed, avoid dried sweetened fruit, and never serve moldy or fermented pieces.
Use timing
Offer tiny fruit pieces for training, foraging, or variety, then remove leftovers before they spoil.
Better default
Think small, plain, and occasional unless your avian vet or species diet says otherwise.