Long-tailed Jaeger Stercorarius longicaudus
Average number of individuals by week based on Singapore Bird Database data, Jul 2012 to Jun 2022 (all records)
Peak week Apr 23-Apr 29
Early date 20 Aug 2011
Late date 13 May 2012
Sporadically recorded during the peak pelagic migration months (Oct, Apr/May), but not seen since 2018.