Birds swoop in over a pond at Hong Kong’s Mai Po nature reserve in Yuen Long, in the winter of 2019. The nature reserve serves as a key way station and wintering site along the East Asian-Australasian Flyway along which 50 million migratory waterbirds travel each year. Photo: Nora Tam
Birds swoop in over a pond at Hong Kong’s Mai Po nature reserve in Yuen Long, in the winter of 2019. The nature reserve serves as a key way station and wintering site along the East Asian-Australasian Flyway along which 50 million migratory waterbirds travel each year. Photo: Nora Tam