thinfor

I've seen a ruddy-breasted crake before.  This one really looks a bit different since the barring on belly is very conspicuous that a ruddy-breasted crake should not have.  From the red legs, slaty-legged crake can be ruled out.  Also, ruddy-breasted crake doesn't look like to stay in Lung Fu Shan where is not like a nice swamp area.
Shey, I hope the other experienced birders would have this answer too!