Sakhalin Leaf Warbler Phylloscopus borealoides
Average number of individuals by week based on Singapore Bird Database data, Jul 2012 to Jun 2022
(all records)
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).