Thank you very much! Excellent photo!
A1 was ringed on 14-Apr-2022 as an adult at Mai Po. It is carrying a satellite transmitter under WWF's Wetland Incubator project.
This is the 1st sighting since Apr-2022! Satellite signal shows that it breeds in Heilongjiang, China and winters in Surabaya, Indonesia. It is on its journey north at the moment, currently stopping over at Poyang Lake.
Katherine