|Image © Erlend Alvestad, my wonderful fiancé <3|
Budgies like both sweet and sour food. Most birds prefer food with a sour or bitter taste, that's one reason why budgies like vegetables so much. But when it comes to apples, millet, or other treats that contain sweetness like honey, I can definitely point out some addicts for you!
So taste really differs from budgie to budgie; there are budgies that shudder and walk away after they take a bite out of a fresh, bitter lettuce leaf. On the other hand, there are actually budgerigars that dislike apples.
Note that you better don't give any fruit or vegetables to your budgies when you think it's too bitter or sour! I hereby give the example of citrus fruit like lemons and grapefruit. Also, don't pamper them too much with snacks that are too sweet or salty. You don't want your budgie to get indigestion!
Other posts in this series:
Amazing senses pt. 3
Amazing senses pt. 2
Amazing senses pt. 1