Thanks for the record.
Common Redshank DM was ringed at Mai Po on 14-Jan-2021 and fitted with a GPS tracker.
It has been recorded at Mai Po #22 in Feb-21; at Shan Pui River by you in May-21; at Shenzhen Futian Nature Reserve in Oct-21.
According to the tracking data, it frequently use southern Mai Po and Shan Pui River.
Katherine
Waterbirds Ringing Group