Thank you for all these records.
Common Redshank (all are wintering birds):
CN, CU - both ringed in Nov-2020. Both being the 9th report, all from Mai Po.
DP, DT - ringed in Jan-2021, 6th and 7th sighting at Mai Po.
DY - ringed in Feb-2021, seen 15th times at Mai Po since.
D1, Y2 - both ringed in Sep-2020, both seen once in Shenzhen Futian, 13th and 18th report from Mai Po.
KT, KV, KW - both ringed in Nov-2021, 7th, 11th and 7th report from Mai Po.
LV - just newly ringed on 3-Apr-2022
M4 - ringed in Nov-2018, reported 22 times since including two summer sightings(May-2020, Jun-2021)from Mongolia near Ulaanbataar.
W2 - ringed in Oct-2019, 17th report, all from Mai Po
Z1 - ringed in Sep-2020, 5th report from Mai Po
We haven't use flag Z7 on Common Greenshank, so I guess it might be a Marsh Sandpiper instead, ringed in Nov-2021, 5th sighting.
Marsh Sandpiper T1 - ringed only a few days earlier (3-Apr-2022), 1st sighting.
Curlew Sandpiper with black-over-yellow flag is from Kamchatka, Russia. Nice sighting as I understand not many Curlew Sandpiper were flagged there.
Greater Sand Plover with yellow flag is from Eighty Mile Beach, North-west Australia (approx. -19.662195, 120.894816).
Will pass both foreign bird sightings to the corresponding researchers.
Katherine
Waterbirds Ringing Group