I would mix it 50/50 with a favorite juice. Most birds like apple juice. If you can get her to drink cranberry juice that's even better since cranberries are naturally helpful and detoxing to the liver and kidneys. Also I am talking about juice with NO additives, NO sugar, NO coloring's. I buy it at the health food store.
I used to get my Amazon to drink as much every day throughout the day as I could get her to.
I would do the same with a budgie.