Daily weighing and recording the results is the sure fire way to determine food intake. My YSA eats a lot some days and just picks on others. DIgital kitchen scale w/accompanying T perch can be had for around $40 or less on Amazon.Okay, so she doesnāt seem to be eating enough. One website said yellow-shoulders eat 1/4 cup of pellets and 1/4 cup of fresh foods each day. Another said 1/3 cup of pellets and 1/3 cup of fresh foods. Then an old article from J&B Exotics said they give each pair 1 cup of fresh foods (fruits, veggies, beans, nuts, seeds) everyday. The girlās maybe eating 1/3 cup of food (varying ratios of pellets to fresh food) each day. It takes her three days to eat 1/4 cup of pellets, and she always leaves some of her supper (fresh) behind, which is rarely more than 1/4 cup of food.