Day of Flight (巣立ちの日, 'sudachi no hi')

Under no specific time constraints, a Haibane who has been living happily within the town of Glie may suddenly begin to change. They may grow distant and somewhat thoughtful and quiet. They may begin doing nice things for those around them or even giving away their possessions. No one knows what it feels like to receive the call of the Day of Flight, since a Haibane on the verge of leaving never speaks of it to those around them. Once they've effectively set their affairs in order, the Haibane just vanishes from the nest, supposedly guided by a mysterious force into the Western Woods. Those fortunate enough to be facing west at the right time will bear witness to a spectacular ray of light rising from near the walls within the Western Woods, disappearing into the sky after a minute or so. Venturing into the Western Woods, anyone choosing to try to follow the Haibane will find a collection of strange ruins and an old, crumbling stone staircase leading to a small pedestal. There will be no sign of the Haibane, and the only trace of their presence will be a dull, deadened halo and a few scattered feathers. No one knows what happens to Haibane on the Day of Flight or where they go. But the Haibane believe that they've simply gone somewhere outside the walls and that one day, they'll all be able to meet again there, wherever they may be. There's no way to know how long a Haibane will have to wait for their Day of Flight, or whether or not certain conditions must be met beforehand. It can take as few as two years or as many as seven or longer.