We went there for the Fall Food and Wine Festival as well. Surprisingly, there were more ducks around then than now. Back in late October, there I saw tons of mottled ducks and mallards all over the lake at Epcot. And some of the biggest bluegills and softshell turtles you would ever see.
Disney reduced capacity to 25%, masks required and you have to make reservations for the park you want to go to on any given day. The place is virtually empty compared to normal times. Lots of the shops are closed too. But still a good time. We bought 3-day Florida Resident passes, so it's a lot cheaper vs. regular price.
When we went to Disney for a week back in February 2015, there were ducks in about every pond and ditch on the park. Mostly ringnecks, coots and mottled ducks.