No. of Observations

252,036

No. of Species

2,244

No. of Sites

892

Observations by Year
2025 0
2024 3,723
2023 6,006
2022 6,681
2021 9,445
2020 12,949
2019 23,054
2018 20,558
2017 11,537
2016 22,727
2015 17,629
2014 10,443
2013 5,874
2012 8,640
2011 7,788
Species by Year
2025 0
2024 565
2023 799
2022 839
2021 837
2020 926
2019 918
2018 1,173
2017 961
2016 1,086
2015 1,077
2014 1,033
2013 933
2012 1,076
2011 964
Sites by Year
2025 0
2024 80
2023 105
2022 101
2021 109
2020 96
2019 75
2018 94
2017 88
2016 105
2015 128
2014 157
2013 129
2012 156
2011 160
Sites
Site Name Observations Last Observation
Ames, Paul 119,894 2022-11-10
Hitaga Sand Ridge Prairie Preserve 18,180 2024-08-16
Wickiup Hill Outdoor Learning Area 7,688 2024-04-13
Matsell Bridge Natural Area 7,482 2024-07-24
Wanatee County Park 6,144 2024-05-17
700 Black Bear Bend 5,187 2024-10-22
Pleasant Creek State Recreation Area, Linn County 5,104 2023-08-28
Neal Smith National Wildlife Refuge 4,721 2024-07-21
MacBride Nature Recreation Area 3,934 2024-09-08
Big Creek State Park 3,429 2023-06-04
Pinicon Ridge Park 2,833 2024-08-04
Near Fairfield 2,802 2022-04-03
Chichaqua Bottoms Sandhill Prairie 2,185 2011-08-28
Shimek State Forest, Farmington Unit 1,920 2020-09-22
Inis Grove Park, Ames 1,803 2021-08-30
Palisades Kepler State Park 1,708 2024-09-18
Jefferson County Park 1,556 2024-07-24
Yellow Banks Park 1,554 2023-06-26
Brees Yard, Saylorville 1,528 2022-10-28
Puccoon Prairie 1,455 2011-09-06
Whiterock Conservancy 1,299 2019-10-04
1460 Douglas Ct, Marion 1,234 2024-07-27
Indian Creek Nature Center 1,225 2023-06-29
Waubonsie State Park 1,218 2023-05-21
Thomas Mitchell Park 1,161 2006-05-25
View All Sites Observations for protected species or from private sites are not included in this list.