This was by far the closest I've been to a Gadwall, normally quite shy. Even some pinkish colouring appears on the head. Some shoreline brambles helped provide a blind. Thanks to the City of Richmond for doing a phenomenal job in protecting wildlife wetlands.
A rather complex scene unfolded in front of me today. While trying to photograph a group of Green-winged Teals, slowly more species appeared. What I believe to be 4 species including Green-winged Teal (top and bottom, male female), Gadwall (2 in the centre), Shoveler (towards the bottom left) and American Widgeon (upper right, and middle left). I'm not sure whether the bird in the middle upper left with the orange beak is a Mallard. Seen at Tsawwassen, BC, Canada.