This was after the scaup saw me, I think it might be posing. I love its blue bill. The head feathers have a purplish green iridescence that shows up when the light hits it just right.
Male Lesser Scaup (Aythya affinis)
aythya affinislesser scaupmale lesser scaupscaupbreeding plumagecottonwood parkrichardson texasgold and silver watergolden eyesblue billposingiridescent