How long does Gray Yan feed?

Gray Yan will be fed once a day. The words of young birds are more diligent, and it is better to feed about every two hours.This bird is mainly eaten by grains, and it is necessary to feed Suzi, egg yolk and other supplementary nutrition, and add vegetables and fruits.Usually, the food and water that I haven't eaten yesterday are usually daily in the early morning, and then the new one is added, so as not to cause deterioration after a long time, which will affect the health of the birds.