Looks like they switched which exhibit the scoter is in since my last visit (assuming this is a recent photo, not a pre-bird flu one). It used to be in the aviary outside Rainforests mixed with argentine ruddy ducks, Primates, and some Turtles (maybe some other stuff I'm blanking on as well).
@Neil chace I took this photo in 11/2021, as stated above. It was in that mesh aviary outside the rainforest building at the time, mixed with other ducks.