Considering the fact that only wild macaws can digest toxins and neutralize it by consuming clay, you need to make sure to not feed your bird anything toxic to them, including avocados. It's best to feed your chook a formulated mix of parrot food items that includes additional nutritional vitamins. https://johnnydralt.vidublog.com/27279605/blue-and-gold-macaws-for-sale-fundamentals-explained