The Pin-tailed Parrot Finch neither needs live food nor much green food.  Give watercress once or twice a week.

There are very few reports of taking live food even when with chicks.

Always available ad lib

Dry Seed Mix - the Graham Lee/ Dutch seed mix.  

8Kg - White Millet
7Kg - Plain Canary
3Kg - Plate Millet
3Kg - Japanese Millet
1Kg - Crushed Oats (Pinhead)
1Kg - Grass Seed or Bushwacker

Daily

Eggfood - another Graham Lee/ Dutch mix (24% protein)

500 gms - Cede Tropical™
500 gms - Cede Normal™
150 gms - Proboost™
100 gms - Wheatgerm
60 gms - Vitamins
10 gms - Pro-bird Herbmix™
5 gms - Spirulina

Needed - grit at all times plus crushed cuttlefish bone mixed with
dry vitamins (Daily Essentials 3™)

Just moistened with orange juice - to bind
1 teaspoon of juice to 3 tablespoons of eggfood

Mix will be ignored most of the time but suddenly will be consumed -
a sure sign of laying

1 teaspoon of juice to 3 tablespoons of eggfood

The added vitamins ensure laying hens have maximum supplementation

Two teaspoons of eggfood, daily for 8 - 10 adults
Increase as required when chicks are being fed

Soaked seed
Graham's seed mix (and equal parts of paddy rice?)
2 or 3 tablespoons seems enough for 8 to 10 birds
Vitamins - added to the soaked seed

Other breeders don't use Paddy Rice - successful Dutch breeder hates it

I use EXCEPT when chicks are less than 12 days old
At that age is invariably lethal if parents feed to such young chicks