brendank

Difficult to say for sure but I would guess Brownish-flanked Bush Warbler.  The legs look to pale for Dusky Warbler and the back not green enough for Common Tailorbird.  If you heard any calls, that would be helpful to describe.

brendank

I don't think the color tone is right for either Radde's or Yellow-streaked Warbler.  I think it one of the Bush Warblers.  I would like to add it to my list for Po Shan Road (since I have yet to see any bush warblers there) but I am afraid the pictures aren't conclusive enough.