LMF
In your case, because your birds begin to molt themselves, you don't need the austerity diet to trigger the molt like I was doing.
Tiffany
- I was too upset and did not think of inspecting her. Even if I did, I did not know what to look for.
- I was at the end of transitioning her to the BRU austere diet, so it was pretty much all BRU austere diet.
- I saw her eating in the morning, when I refilled the seed dish. I did not check the cage till early afternoon when I saw her die. Almost like she was waiting for me before she died.
- Maybe the diet change was part of the problem, as she was eating a variety of food (I think); seeds, pellets, veggies and egg before I started transitioning her to the austere diet. She started eat more variety after I put her in with the 3 hens who are not picky eaters, and I think they taught her to eat more variety. Maybe her system was so used to something in her normal diet that when it was missing in the austere diet, it created another health problem.
- She was the only bird in that cage. I did not have any other F gouldian to molt. She could hear the other gouldians but not see them. Was she lonely?

I think w/o other birds to teach her to eat the new food (the austere diet), she reverted back to her stubborn "I want MY food" eating. So even with the food there, she held out for her old familiar food.
DF
The problem with her is that she was a STUBBORN eater. For example, she would only eat the white millet out of the goudian seed mix and not touch the egg/veggi mix, even though her mate ate it. And she would pick out "something" from the miracle meal mix (was not able to figure out what she was picking out). So I have seen her not eat other food that her mate would dive in and eat.
I think a good technique for the fledgling is to get them to eat a variety of food early, so they are not picky eaters. Soon after they fledge, I put a shallow dish in the cage with different foods; soaked seeds, miracle meal, dry egg food, pellets and soft veggies. The chick being curious watches the parents eat from the dish, it then pokes at the food and gradually starts trying the different food. I started doing this so the chicks do not develop a taste for "ONLY seeds" which my first clutch of zebra chicks did. Unlike their late mother, her 2 chicks will eat anything I put into the cage.
Having said this, I had one clutch of zebra chicks avoid the food dish for almost 2 weeks after they fledged. They just begged their parents to feed them...and their parents did. I was wondering if they would ever learn to eat on their own.