I saw this female Ring-necked Duck at Delta Ponds. Information about Ring-necked Ducks:

"The male Ring-necked Duck is a sharply marked bird of gleaming black, gray, and white. Females are rich brown with a delicate face pattern. At distance, look for this species’ distinctive, peaked head to help you identify it. Even though this species dives for its food, you can find it in shallow wetlands such as beaver swamps, ponds, and bays. Of all the diving duck species, the Ring-necked Duck is most likely to drop into small ponds during migration." (From 'All About Birds - https://www.allaboutbirds.org/guide/Ring-necked_Duck/id)