When she first started to lay she broke her first egg. I took this to mean that she was inexperienced and would probably produce next year, like I have experienced with other pairs of parrots in their first season. However she laid four more eggs and although I wasn't expecting much she hatched them all.
I think I was trying too hard with the Princess Parrots trying different types of boxes and giving multiple options. I had spoken to a couple of breeders and they said they just use a standard medium sized box. So this year I offered a medium sized parrot nesting box with non toxic wood shavings as the nesting material.