Past SDOU Meetings Select a meeting button from the list to view the list of species seen on field trips. Note that not all past meetings have a species list available. Click a Button for the Species List (when available) 2022 Fall - Sioux Falls 2021 Fall - Sioux Falls 2019 Fall - Pierre 2018 Fall - Madison 2017 Spring - Aberdeen 2016 Fall - Vermillion 2016 Spring - Oacoma 2015 Fall - Brookings Open Full Screen