re 2. Time of occurrence. What is the previous latest record for Pale-legged? (question in HF's previous post).
In some winters there have been quite a few, specifically in less "core" woodland in areas such as Sai Kung (seen by me in varying nos. in at least two winters ie Dec to Feb, plus heard quite a few times in those winters suggesting bigger nos.) and Lamma (seen by Paul Leader in the past I think).
These birds have looked like tenellipes ("Pale-legged") to me in the past, but of course it is really tough/impossible to be certain.
Mike Turnbull