It was one 10 year old male (didn't survive in the end

Is there a good idea to trying to trigger a moulting for the female (if yes how can I do it?) or is it better to wait a few month until the normal moulting season? She is trying to build a nest (but is now alone in a cage and no longer together with my male canaries, separated them right away when they got home to me a few weeks back).
The males have been moved outside now but don't want to put the female outside as long as she is missing feathers on her head and the rest of her feathers is broken :/ feels sorry for her not being able to fly correctly.