Bush-hen ups and ambushes us

Oops, look what's turned up sprucing up and showing up the Tyto 'expert', an immature Pale-vented Bush-hen (Amaurornis moluccana). Long views yesterday and again this morning beside a creek pool. And all after telling visiting birdos the hens all went south or west and wouldn't be back till October. Perhaps this bird couldn't fly with the others. Are there even more hiding silently in the tangles? Sorry, Ed, Mike, Hugh. 
Click pix to enlarge