Species · Kansas · BBS 2025 Release · 1966–2024
Great-tailed Grackle Population Trend in Kansas
Great-tailed Grackle in Kansas has surged: up 24× on the route-weighted index since 1973.
24×Since 1973
51Routes In State
53Years
Notable Great-tailed Grackle Trends in Kansas
long arc increasecomputed index
Great-tailed Grackle has surged in Kansas: up 24× on the route-weighted index since 1973.
Great-tailed Grackle Population Forecast in Kansas
If the recent trend holds, Great-tailed Grackle in Kansas is projected to stay roughly flat through 2029, near 2.0 (95% range 0.85–3.2). A 5-year backtest shows a typical error of ±78.9%, with 60% of held-out values landing inside the 95% band.
+1%Change by 2029
2.0Projected 2029 index
0.85–3.295% range
±78.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.9 | 0.74 | 3.1 |
| 2026 | 1.9 | 0.76 | 3.1 |
| 2027 | 2.0 | 0.79 | 3.1 |
| 2028 | 2.0 | 0.82 | 3.2 |
| 2029 | 2.0 | 0.85 | 3.2 |
Great-tailed Grackle Survey Routes in Kansas
| Plymell | 32 | 2024 | 2000 |
| Leoville | 17 | 2013 | 1995 |
| St John | 14 | 2017 | 1975 |
| Dalton | 8 | 2005 | 1990 |
| Wreford | 8 | 2023 | 1995 |
| Kanopolis | 8 | 2007 | 1992 |
| Gove | 8 | 2002 | 2002 |
| Galesburg | 7 | 2023 | 1986 |
| Wellington | 7 | 2024 | 1975 |
| Leoti | 7 | 2022 | 2000 |
| Minneapolis | 6 | 2009 | 2002 |
| Covert | 6 | 2014 | 2014 |
| Ruleton | 6 | 2022 | 2008 |
| Grigston | 6 | 2024 | 2006 |
| Barclay | 5 | 2021 | 1983 |
| Albert | 5 | 2018 | 1971 |
| Missler | 5 | 2019 | 1979 |
| Le Loup | 5 | 2012 | 2003 |
| Susank | 5 | 2008 | 2000 |
| Dover | 4 | 2022 | 1987 |
| Rock Creek | 4 | 2002 | 2002 |
| Hopewell | 4 | 2010 | 2010 |
| Lapland | 3 | 2016 | 1995 |
| Morehead | 3 | 2024 | 2000 |
| Reece | 3 | 2016 | 2007 |
Great-tailed Grackle Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.