original: He is released back into the wild, now with more adult feathers, and a tracking device strapped to his back, and leads the humans home to his native colony.
simplifications: He is put back into the wild, now with more adult feathers, and a tracking device strapped to his back.  He leads the humans home to his native colony. He is put back in the wild with more adult feathers and a tracker on his back. He is leading humans to his home colony. He is returned into the wild. He has more adult feathers, and a device on his back that leads humans to his colony. He has more adult feathers now. He has a tracking device on his back too. He is released into the wild. The tracker will show humans where he lives. He is released back into the wild, now with more adult feathers. A tracking device is strapped to his back. He then leads the humans home to his native colony. He is let back into the wild. He now has more adult feathers and a tracking device on his back. He leads the humans home to his native colony. The bird is returned to the wild having matured feathers and a tracking device attached. The tracking device allows researcher's to find where the bird is originally from. He is released back into the wild with a tracking device attached to him that leads the humans to his home. He was released back into the wild with more adult feathers and a tracking device strapped to his back. He led the humans to his native colony. He is released back into the wild with more adult feathers. He also has a tracking device strapped to his back. He leads the humans home to his native colony.