Change in diet

After reading that cockatiels should be eating a limited amount of 20-30% seed we were shocked. Yes we did currently give Spooky vegies but that was really only a small percentage of his food intake the rest was seed.
Pellets
We purchased some Dr Macs Cockatiel pellets from the vet. YES he likes them
Seeding Grasses
Fresh clean seeding grasses can be collected from your garden to feed your birds. Ensure that these are free from pollutants and chemicals. YES he loves wintergrass
Nuts
Cashews, almonds, peanuts, walnuts, macadamia, brazil nuts, pecan nuts, pistachio nuts, pine nuts. Try peanuts in the shell so your bird has to work to get the reward. YES amazing he does love nuts

Natural Browse
Casuarina, bottle brush, banksia, eucalypt wattle and pine cones. Most native plant species are safe to give, but stay away from introduced species.

Fruit & Vegetables
Apple, Apricot, Asparagus, Baby Corn Banana, Beans- fresh - kidney/lima/lentil/soy, Beetroot, Blueberries, Broccoli, Brussel Sprouts, Cabbage, Capsicum (all colours), Carrot, Chinese vegies (bok choy), Coconut, Corn (on cob, from frozen pack), Cucumber, Dandelion Leaves, Endive, Fig, Grapes, Kiwi, Mango, Pear, Peas, Parsnip, Plum, Pumpkin, Rockmelon, Silverbeet, Spinach Sprouted seeds, Sprouts - alfalfa, mung, radish, Squash Sweet potato and Zuchini. Spooky's favourites: Corn on the cob, Bok Choy, Apple, Beans, surgar snaps.
So yes some success in diet habbits but not sure if this has slowed down his feather plucking.