- The Ring-Necked Duck (Aythya Collaris) is a medium-sized diving duck native to North America - It has a distinctive white ring on the bluish, black-tipped bill, bright yellow eyes, and dark body and wings - Males are mostly black, while hens are dark brown - Commonly found in freshwater ponds and lakes, but can also be found in flooded grain fields and forested wetlands throughout southern Arizona -They eat aquatic plant seeds and tubers, as well as aquatic invertebrates ==> Getting the ducks in a row ...