Mallards domestics and crosses can indeed be beautiful
Look at this photo of a young male with just moulted plumage. We had a brood with 2 green ducks male and female in our local park and we kept going back to just look at them! The usual green/purple iridescent mallard color on neck was all over its body. Unfortunately, it disapeared shortly after I took this photo.
has anybody seen another green mallard?