J30 is an adult female and was ringed at Mai Po GW#8b on 17 December 2021. It's the first resighting reported to us, but she may have spent all winter around Mai Po.
If anyone does notice any birds with colour rings, please report them here so that we can keep a record. It's very helpful for us to understand the movements of birds. Author: Wellington Time: 4/04/2022 21:16
Thank you for the information.
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