A bird watcher saw people landing on an uninhabited island in southern Hong Kong waters known to be a regular breeding site for terns during mainland China’s Labour Day “golden week” holiday, according to a green group.
Terns mainly feed on small fish and aerial insects. While about 40 species exist globally, 12 have been recorded in Hong Kong. Three species breed on Hong Kong’s outlying rocky islands during the summer, with one near Po Toi Island.
On the second day of the holiday, a bird…