The new duck decors are great, I'd love to see more. There are many colorful species of African ducks and geese that would make great additions. Here are two of them (I will suggest more later!)
Also: Don't forget we need some ducklings! =D

Fulvous Whistling Duck and Black Bellied Whistling Duck (the BB is S American however)
An interesting long legged duck with a distinctive whistling call.



More beautiful reference pics of Black Bellied and Fulvous here!

and their relatives, the
White Faced Whistling Duck