Hi Katherine, thanks for the information, I'm so sad i did'nt know it when I heard the bird, Would have been an other sensation to know I was hearing a new Mai Po bird species:-)
There is a hight probability this bird was a migrant, this is my second time to get BW Thrush on totally unexpected places, the last time was at Dong Ting lake Hunan province in poplar plantation.
All the best,
Jonathan