They scraped and saved for that nest!! They put off sending the fledglings to college so they could have a nice cozy home for the winter, secure in a well-sheltered area, and you want to evict them??? Have you no heart?! Sure, they can go stuff another gap with fluff and bits of litter, and be warm and toasty, like feralnerd says, but think of the dreams you have dashed!

(says the person who routinely steals her parrots' chewed-up "nest" boxes when they get too trashed/filthy)