Female Type. Left-most bird in photo
While rafting on the middle fork of the Flathead River, we saw two small families of common mergansers (females with young). They were diving in the crystal-clear, cold water of the river, or resting on the banks. We saw a total of about 10-15 along the way.
Three female mergansers swimming around Russian river near Guerneville
Sorry only photo. Smallish, with thin bill. They are listed as "Frequent" on the list for the park: http://www.denveraudubon.org/wp-content/uploads/2012/05/Chatfield-Bird-List.pdf
Female common merganser with 5 young
5 COME juvies together on Long Pond
This female was one of three that together were watching over a brood of 28 ducklings.
Achray/ On Grand Lake
Group of female indiduals
4 individuals - Females, I think.