This is from my Nextdoor.com group:

"Went for a run on Soos Creek and saw this duck. Found out it's not native so it appears someone is missing their duck. It was easy to walk up to but I left it not realizing it wasn't "wild". So if you are missing one then park at the lot for Gary grant Soos creek trail and walk south."

The photo is a black and white duck, mostly black.
Nancy