Bird Watching Marathon 2020 online enrollment Attachments: BW_Marathon _2020_enrollment_form_eng.doc[ ]214 kB BW_Marathon _2020_enrollment_form_eng.pdf[ ]651 kB Previous article: The first GPS-tracking research of Egrets in Hong Kong Fishpond plays a key role for both resident and migratory Little Egret Prev Next article: In memoriam - Dr NG Cho-nam, Vice-chairman of HKBWS Next