Lesser Scaup

I found a neat PDF article with photos that compares Greater and Lesser in the field. http://cfobirds.org/downloads/In%20the%2...

thnx :)

This one is a male :) Females have the white patch you are referring to.

i do agree this is a lesser scaup. If you look at the other lesser scaups in my collection,they have a white patch around the mouth.

What white fronted patch are you referring to?

Thnx ,what about the white fronted patch?

Range map, bump on the head and purple cast make me think this is the Lesser - you decide :)