The female nestling was at top of hollow at 8:04. On my return trip the male nestling was at the top of the hollow and after lots of calling to its parents in the nearby tree it flew off and joined them and they all flew to a tree about 100m away where there was celebration and preening from the parents and smiles all around. After about 15 minutes the male fledgling was left on its own. this was probably its maiden flight