This video, from the Cornell Lab of Ornithology in the USA, says about itself:
Male Ring-necked Duck with females
5 June 2015
Ring-necked Ducks are diving ducks that are typically found in shallow wetlands and smaller lakes and ponds throughout North America. White markings on the bill, along with the black back of the male help separate them from the similar Greater and Lesser Scaup.
Dear Kitty. Some blog 