Sakhalin Leaf Warbler Phylloscopus borealoides
Average number of individuals by week based on Singapore Bird Database data, Jul 2013 to Jun 2023 (all records)
Peak week Jan 22-Jan 28
Early date 26 Nov 2021
Late date 19 Apr 2019
An annual migrant to Singapore in recent years, since the first confirmed sighting in 2013. Indistinguishable from Pale-legged Leaf Warbler without hearing its call (slightly lower pitched) or song (which is extremely different from Pale-legged).