Outsmarted!

In my new house, Max's favorite spot is on top of my stained glass window that's in my stairwell.  You can see it in the background of this picture.

However, she is not allowed there, as she chips off pieces of old wood and I want my house to look nice!

I attempted to hang a curtain in my stairwell to prevent her from going up there.  But the barrier was ineffective as she just decided to perch on it instead!  And usually wind up on the stained glass after a few minutes of strutting around, proud of herself.

I have also tried using a curtain to enclose her in the living room, where their cages are.  She has a two-pronged approach to deal with this inconvenience:

First, she flies directly into the curtain several times, to see if she can dislodge the tension rod and cause the curtain to fall (this must hurt...)

When this fails (about half the time), she flies to the ground, crawls under the 1/2 inch space at the bottom of the fabric, and then flies to the stained glass window.

I still have not figured out an effective solution to this other than intense supervision and going upstairs with her.  Or corralling her in the kitchen with me.  I need to become smarter than my parrot!

(My actual plan is to get something that can fit there so she no longer can.  I just have to figure out what and actually do it!)