It sounds like there's some confusion regarding organic food vs not, and unprocessed food vs processed. I'm not saying that I personally buy all organic or make everything from scratch, primarily because of the price and time, but there's something to be said for being careful about processed food and food that is not organic.
Just to clear a couple things up.
Organic ProductsEven if the product says organic but hasn't been certified, then it's not. For information regarding organic certification and what it means in the USA:
http://www.usda.gov/wps/portal/usda/usd ... RTIFICATIOTo be organic in the USA synthetic fertilizers, sewage sludge, irradiation, and genetic engineering may not be used. There is a list of the pesticides, insecticides, rodenticides, and herbicides that can be used which exclude the dangerous ones. I've read the entire list before (for my work) and there is very in depth information regarding the use of the pesticides and the studies to back up why specific pesticides can or can't be used. Purchasing organic vegetables and fruits for your parrots is probably a good idea. You can also look up which veggies and fruits uptake pesticides more than others and avoid buying the ones that have a high uptake of pesticides. The impact on chemicals on such a small animal I think could be far more dramatic than on an adult human. I found this list of veggies and fruits that uptake pesticides more readily and should be avoided or purchased organically to avoid the chemicals (from the USDA consumer reports, I believe this is the source:
http://www.ams.usda.gov/AMSv1.0/getfile ... rdc5102692, there's some fascinating statistics in there too. Also a note, this information was extracted from the document by a third party, but you can read the whole document):
Nectarines – 97.3% of nectarines sampled were found to contain pesticides.
Celery – 94.5% of celery sampled were found to contain pesticides.
Pears – 94.4% of pears sampled were found to contain pesticides.
Peaches – 93.7% of peaches sampled were found to contain pesticides.
Apples – 91% of apples sampled were found to contain pesticides.
Cherries – 91% of cherries sampled were found to contain pesticides.
Strawberries – 90% of strawberries sampled were found to contain pesticides.
Imported Grapes – 86% of imported grapes (i.e. Chile) sampled were found to contain pesticides.
Spinach – 83.4% of spinach sampled were found to contain pesticides.
Potatoes – 79.3% of potatoes sampled were found to contain pesticides.
Bell Peppers – 68% of bell peppers sampled were found to contain pesticides.
Red Raspberries – 59% of red raspberries sampled were found to contain pesticides.
Conversely, the following are the least likely, of the food tested, to contain pesticides:
Asparagus
Avocados
Bananas
Broccoli
Cauliflower
Corn (However, almost all corn is genetically modified)
Kiwi
Mangoes
Onions
Papaya
Pineapples
Sweet Peas
Processed ProductsUnprocessed vs processed food is not necessarily related to the organic food debate. You can get unprocessed not organic food. Also, processed does not mean bad! It just means it's not the raw food, like a raw almond from the tree, raw wheat, or a raw apple. Pellets of all kinds of processed, and that's all there is to it. You can choose to do an all natural diet, which is fine but presumably the companies have done a lot more research than you have time to do on your own. Maybe not though. It seems to me the issues with processed food isn't that it's been processed but what happens during some of the processing. Chemicals that are harmful can be added. Nutrients that are important and were a part of that particular food item may be removed during a mechanical, chemical, heating, or cooling process that takes place during the processing. In addition, certain processed items that we buy have far more salt or sugar in it than if we made the particular item our self. This is the case with most canned goods or frozen foods (canned soup, canned veggies/fruit, frozen dinners, etc). This can be problematic for health reasons. We eat as much as we would eat if it were raw or fresh (think canned peaches) but the sugar content is through the roof. Same with salt. I want to look up some additional sources but I found this that might have some interesting information on processed food:
http://www.telegraph.co.uk/health/healt ... or-us.html