We were lucky to see one male and one female in Tinagat, Tawau on 22nd February 2014 (my lifer for 2014), they were in the same pond with the male Northern Pintail Anas acuta.
The female bird was closer with the male Northen Pintail, they always stayed close to each other. The male bird on the other hand was seen singly all the time when we were there. The male bird stayed on for at least another week while Northern Pintail and female Eurasin Wigeon left the next day as we were unable to locate them at the pond.
Eurasian Wigeon - male
Northern Pintail is seen staying close to the female Eurasian Wigeon.
Eurasian Wigeon - female