A female Passer sparrow. Bill shape and colour, and head pattern, look more like House P. domesticus than Russet P. cinnamomeus.
Not a recent record - I think there was a record of one at LV a few years back, as well as nearby in Guangdong. Same year as this one? Author: ddavid Time: 30/09/2015 21:56
From the recent update of species to the HK list:
House Sparrow was transferred to Category I of the HK List based on a record at Long Valley dated 2012-11-03
Presumably this is the same bird as referred to above - albeit two days earlier.
Welcome to HKBWS Forum 香港觀鳥會討論區 (http://www.hkbws.org.hk/BBS/)