The Common Redshank is more likely CB, ringed on 15-Oct-2020.
Record at Mai Po in Mar, Aug 2021; Feb, Aug-Nov 2022 before.
This is the 8th sighting
Marsh Sandpiper X4 was ringed on 14-Nov-2020.
Recorded twice at Mai Po in Dec-2020 and Feb-2021 and once in Futian, Shenzhen in Mar-2022.
Nice to see it returns again this season.