We spotted this very unusual all-green'Thai silk' duck yesterday in one of the ponds next to the bicycle path along the Willamette River in Eugene, Oregon. I went back today with my DSLR and a 400mm lens to see if I could get a photo. I am interested to know if anyone has seen anything like this before, and can identify it. It is a bit smaller than the mallards that it hangs around with.
Any ideas would be most appreciated!