One female was photographed on 13th November in Tawau, foraging with a group of resident Wandering Whistling Duck Dendrocygna javanica, however, it was not to be found the next day, it might have moved on further south.
It is my lifer bird; it is getting harder and harder to score a lifer now a days.
Northern Pintail among the Wandering Whistling Ducks.
The brownish speculum indicates that this is a female instead of an eclipse male. Male in eclipse plumage resembles female but retain it distinctive metalic green speculum.