David,
Please see the link below for the news on sparrow census.
Hong Kong has higher sparrow density than UK, survey finds (ejisight)
http://www.ejinsight.com/2016071 ... ow-density-than-uk/
Sparrows give trees a miss to perch among people (Standard)
http://www.thestandard.com.hk/section-news.php?id=171722
Besides, here is a short article in the December issue of BirdLife magazine.
Thanks again for your support and hope you enjoy reading them!
PDF version:
BirdLife_Decissue_HKSparrow.pdf (207.9 KB)
Jessica