I think this may be a Grey-sided Thrush, and thus a first for HK.
If so, I am officially the first person to have dipped on it having spent the last 15 minutes of light looking for it, but seeing nothing more than a Pale Thrush - beware of that one!
Btw the park is open access - it's just the big car park that only opens at 9.30am. I guess there will be morning dog walkers in there early, and may be exercisers!
Quite a lot of parking elsewhere eg along the road past the entrance to the left towards Tsiu Hang village.
You can't miss the Lantern Bug, just by the veggies and the Dragonfly pond.
Also, amazing how you can re-write history these days ;-)
Mike Turnbull