The cayuga duck is a breed known for its black to metallic green plumage, and—just like the black squirrels in NYC—to me they look absolutely marvellous!
There seems to be disagreement over the breed’s origin, but according to Wikipedia they were popularized around the Finger Lakes region (Cayuga being one) of the state of New York.
Looking cayugas up also taught me that drake is the English word for a male duck. Live and learn!
The Visual Inspiration occasional feature pulls the unusual from our world to inspire design, story-telling, and worldbuilding. If stuff like this already exists, what else could we imagine?