A Curlew Sandpiper tagged in Mumbai by Bombay Natural History Society (BNHS) has been spotted in the Tianjin province of China, around 4,500 kms away, marking a significant achievement in studying bird migration, officials said here on Wednesday. The bird - which breeds in the Tundra of Arctic Siberia is strongly migratory, wintering in Africa and also south and south-east Asia besides Australia and New Zealand - was tagged by the Bombay Natural History Society (BNHS) scientist Mrugank Prabhu and his team.

It was first caught and tagged in a wetland near the Palm Beach Road at Nerul in Navi Mumbai on March 18, 2019 with a unique Flag No. 7N5, and later it was captured against on January 13, 2020 at the Bhandup Pumping Station in Mumbai. The same Curlew Sandpiper has now been resighted at Tianjin in China on May 6, 2021 during its northward migration to its breeding sites, said Prabhu.