by Michael » Sat Aug 11, 2012 11:39 pm
While chocolate/avocado are the outright deadly ones, there are plenty of others that fall in the categories of bad for them, overdosed on chemicals, or downright useless. For example things like celery, lettuce, cucumber, watermellon, and the like are useless to the birds. The first two are just fiber and water so they fill their crop and taking away from real nutrition. The second two are water and sugar which are just empty calories. Things like strawberries, other berries, and other specialty fruits are overdosed on chemicals. Some say it seeps in so deep that you can never wash them all off. The birds are much more sensitive toward these kinds of things so it's best avoided. They nutritional gain of eating these fruits is negligible compared to the risks. Chilean grapes can be deadly. Someone said Chile has some crazy low standards and that parrots have died from consuming those. If you do feed grapes, wash them very thoroughly and only buy American grown ones. As for foods that are bad for them, I've heard that garlic, onions, and tomatoes are bad for them. Spinach is up for debate. Some say good and others bad so it's safest to just skip. Fish is another food that is best to skip. It's not even close to their normal diet and loaded on heavy metals so don't feed them fish.
Stick to known foods like broccoli, carrot, cauliflower, peas, corn, apple, banana, grains, seeds, and nuts.