Mrs Eastern Rosella had visited her potential new home a few times, and I noticed she came out of the box each time with a tiny scrap of hay (I had lined the box with soft hay). She would then ostentatiously throw the wee scrap out.
Obviously not her taste in furnishings.
I checked with my dear friend Giovanni who knows much about birds, and he told me that rosellas like to nest on sawdust rather than hay or grass.
So, when Mrs E.R. wasn't looking, I sent in the interior decorators in and had them remove all the offending hay and replace it with lovely sawdust from our fallen river red gum tree.
Now she's *much* happier.