A0 was ringed in Sep-2019 as a 1st year bird.
It was reported at Mai Po in Oct-Dec 2019, and then in Dec-20 to Jan-21.
In Aug-21, it was reported at Beidahe in Hebei province.
Glad to see it back to Mai Po again.
Katherine
Waterbirds Ringing Group
Welcome to HKBWS Forum 香港觀鳥會討論區 (http://www.hkbws.org.hk/BBS/)
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