Unlike Mallards and American Black Ducks, who largely dabble for food, Ring-necked Ducks primarily dive to feed on aquatic vegetation and invertebrates. Males are recognized by their ringed-bill (their maroon neck-ring is difficult to discern) and the white "spur" separating their black chest from their gray sides. Females are warm brown, and have a light eye-ring which separates them from Lesser and Greater Scaup females.
Ring-necked Ducks can be found in northern New England during nesting season, and throughout New England during spring and fall migration, as open water allows. Aside from the photo of the molting female, taken in late summer in Bridgton, ME, these photos were taken this spring in coastal southern Maine.