Can a bird eat vegetables?

Persons can eat vegetables.This kind of bird's food is prime, mainly eating grass seeds, seeds, etc. It is also possible to feed with vegetables, but it cannot be used as its staple food. It can only be added a little to supplement the nutrition such as cellulose.It eats insects during reproduction, so it must also give it a little worm when breeding.In addition, pour the leftovers every day to avoid deterioration.