He is probably removing the skin of many of the foods (beans, peas, corn, rice) and eating just the kernel. Also often they bite into a piece of food like a chunk of squash or apple and extract the juice and a bit of the pulp then let the rest fall out of their beak. So, he could be eating more than you think.
I'd keep refilling the bowls like you are a few times a day. Sounds like you are giving him a good diet.
I'd keep refilling the bowls like you are a few times a day. Sounds like you are giving him a good diet.