THE NATURAL WORLD OF SOUTHERN VANCOUVER ISLAND THROUGH THE LENS OF CAPTAIN YVES- PART 25
The name originated from the hard to see chestnut collar on the black neck of this duck. It is not a very evident marked in the field but it is one that jumped out to 19th century biologists that were studing dead specimens of the species.
Females and males again look very different to each other. Males are a black and white while females are a medium brown with white flecks.
These ducks eat submereged plants and aquatic invertebrates. Although they area a diving species they can often be foudn in shallow waters.