Can gray swallows eat meat?

Gray Yan cannot eat meat.It is mainly eaten with grains and insects. If it is raised manually, you can feed valleys, Suzi, etc., and add a little egg yolk to supplement it for it, or feed it to eat vegetables, apples, cucumbers, etc.This bird is mainly distributed in the southwestern region of my country, usually in rivers and lakes, and prefers cluster activities.Its head is not big and temperament is very docile, so it is easier to raise.