He is definitely old enough to be eating foods on his own and taking formula less often – maybe even just twice a day. You should be offering him a variety of foods to learn to eat, along with fresh water. You can start offering him pellets now – dry and offer some that have been soaked. Also try offering cooked brown rice with mixed veggies, served warm. And some leafy greens and chopped veggies. You can even prepare some formula in a thicker consistency and offer that on a small dish. Before you hand feed him in the morning, place all of these foods in the cage and leave the room, so he can’t see or hear you. Give him an hour alone with these foods, and then go back and feed him his formula. He should start picking at the foods while he is waiting to be hand fed. Leave the foods with him all day, except remove any cooked or fresh foods, soaked pellets or thick formula after a few hours as it can spoil and replace these foods. Offer the warm foods each time you would normally hand feed him, and then wait an hour. Repeat this daily and little by little, he will eat more on his own and eat less formula until he is weaned. There will be a lot of food wasted during this process, but it’s best for him to have plenty of choices so he can wean naturally and not be afraid he won’t have enough to eat. If he shows no interest in solid foods, he may have a health issue and should be seen by an Avian Vet.
Thank you for asking Lafeber,