⁹Hi,
I think you have moved to a new house? Are there other changes?
I guess I should ask first how old is your quaker? How long have you had? What does he e a t?
Quaker parrots are very prone to become pluckers, if their needs aren't met. They are very social, active and intelligent.
It seems to be the start of molting season here, I dont know your location? But mine don't pull them out. As they preen they fall out, I guess maybe sometime they remove them while preening. But tgey never seem itching.
Could your parrot have gotten into a chemical? Have you held after just useing the alcohol cleansing gel.
I have also read chronic metal toxicity can make them itching. Lead can be in wall paper, zinc is hidden in so many things.
Yeast issues can make them itchy.
As can be dry skin, offer baths every day, let tgem choose when to take a bath.
Its a very good practice to have a digital kitchen scale and weigh your bird every week. Daily if you think something is up.. more than 3% weight-loss seek a vet even if no other symptoms. Abd if course seek a vet with any symptoms even if no weight-loss..
What is your quakers name?
Csn you share a picture?
The quick way is to click go advanced under text box, use the paperclip to pick a picture, hit upload on far right, when loads close window and post.
This is a nice article with stress reduction ideas.
https://lafeber.com/pet-birds/stress-reduction-for-parrot-companions/