Try giving vegetables different ways. if you have given them raw.........try cooking some broccoli, broccolini, green beans, pea pods, Brussels sprouts, yams, make a mash out of it and try it that way. Try giving it to them with seed mixed in or pellets mixed in. That way they have to dig through and around the vegetables to get to the seed or pellets. You kind of have to persevere and just try all different ways to offer the vegetables. Most birds will eventually slowly switch over. Try skewering your vegetables and hanging them up around the cage. Food court might have more suggestions for you. Also you might try some of the dehydrated prepared blends of vegetables and beans from some the AA vendors. You just have to soak them and then serve. Good luck, it's not easy, but it is necessary so just be creative and don't give up.