Small duck with white spot on its head
by Wayne Kuykendall
Unknown duck with female Common Merganser
Currently there are a lot of these ducks on Lake Natoma near Folsom in Northern California. They've just arrived in the past few weeks so I assume they are migrating.
That is a female Common Merganser next to it so you can see it is much smaller. In addition to the white mark on the black head behind the eye it has a black eye and bill. I've checked all my sources and can't identify it. Can you help?
I believe the other duck is a female Bufflehead. It winters on lakes and rivers or saltwater bays.