White-winged Tern Chlidonias leucopterus
Estimated average number of individuals by week based on eBird data, Jul 2013 to Jun 2023
Peak week Nov 05-Nov 11
Early date 05 Jul 1990
Late date 18 Jun 1990
A regular migrant in significant numbers, forms huge congregations during migratory periods. Most records in recent years have been from Kranji, Seletar Dam, and Marina East.