How much u feed a pet bird cockateil in one day?

Cockateil I have a pet and want to know how often to feed because is to lead.

Mine used to eat a tablespoon a day of the seed. Thats a heaping tablespoon. Then I gave some vegetables, fruits and spinich. (a little) also has an extra sunflower seeds, because soon she loved and those who pick through the seed mix to get them. I can verify the plate twice a day and if your vacuum to give him a little more.

“Teacher’s Pet” by Doris Day