OrganicFarmWife
Crowing
If you feed strictly commercial feed, then yes, one would consider fruits, vegetables, and insects, "treats". If you choose not to feed commercially, then they are simply feeding them what they are more likely to find naturally in the wild, prepressed pellets are not plentiful naturally. Yes you can make certain that your birds get the exactly what they need (much like a daily supplement would do for you) but you can have perfectly healthy birds, not feeding pellets, and giving them a wide variety of food.