Blue Swedish Duck.
It’s a little iffy recording it though. It’s a domestic duck not normally found in the U.S. There are two of them living in a city park across the street from Chatfield State Park. I don’t have a problem that they’re domestic; I put in my sightings when I see domestic Muscovy ducks in a pond, or feral Indian peafowl, or red Junglefowl running wild in Key West. But those domestic ducks are listed in ebird. These Blue Swedish Ducks are a little more difficult. Ebird doesn’t have an exact match for Blue Swedish Ducks. The domestic Blue Swedish Ducks are descended from wild Blue Ducks in New Zealand; and that bird does show up in ebird. I’m recording my sighting of these two birds as Blue Ducks, with a note that they’re domestics. 600 species! (for now) We’ll see what the ebird moderator has to say about that.