Caspian Tern Hydroprogne caspia
Average number of individuals by week based on Singapore Bird Database data, Jul 2012 to Jun 2022 (all records)
Peak week Nov 12-Nov 18
Early date 19 Jul 1981
Late date 25 Jan 2011
Another very rare migrant with only one confirmed record since 2012; all three sightings since 2006 have been from the Mandai Mudflat area.