Species · Kansas · BBS 2025 Release · 1966–2024
Summer Tanager Population Trend in Kansas
Summer Tanager in Kansas has surged: up 16× on the route-weighted index since 1969.
16×Since 1969
33Routes In State
52Years
Notable Summer Tanager Trends in Kansas
long arc increasecomputed index
Summer Tanager has surged in Kansas: up 16× on the route-weighted index since 1969.
Summer Tanager Population Forecast in Kansas
If the recent trend holds, Summer Tanager in Kansas is projected to fall about 31% by 2029 — from 1.6 in 2024 to a central estimate of 1.1 (95% range 0.56–1.6). A 5-year backtest shows a typical error of ±50.9%, with 0% of held-out values landing inside the 95% band.
-31%Change by 2029
1.1Projected 2029 index
0.56–1.695% range
±50.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.0 | 0.47 | 1.5 |
| 2026 | 1.0 | 0.49 | 1.6 |
| 2027 | 1.0 | 0.51 | 1.6 |
| 2028 | 1.1 | 0.54 | 1.6 |
| 2029 | 1.1 | 0.56 | 1.6 |
Summer Tanager Survey Routes in Kansas
| Trading Post | 10 | 2024 | 2000 |
| Wreford | 8 | 2024 | 1969 |
| Grantville | 6 | 2022 | 1967 |
| Bucyrus | 6 | 2024 | 2022 |
| Dover | 4 | 2022 | 1967 |
| Seneca | 4 | 2022 | 2017 |
| Le Loup | 4 | 2021 | 2000 |
| Olsburg | 4 | 2024 | 2001 |
| Olathe | 3 | 2021 | 1968 |
| Reece | 3 | 2024 | 2000 |
| Melrose | 2 | 2023 | 2012 |
| Barclay | 2 | 2024 | 1981 |
| Ellinor | 2 | 2024 | 1981 |
| Rock Creek | 2 | 2021 | 1968 |
| Pittsburg | 2 | 2018 | 2015 |
| Morehead | 2 | 2024 | 2006 |
| Lincolnville | 2 | 2024 | 2006 |
| Longton | 2 | 2016 | 2000 |
| Galesburg | 1 | 2023 | 2011 |
| Humboldt | 1 | 2022 | 1970 |
| Lapland | 1 | 2021 | 2021 |
| Jewell 2 | 1 | 2024 | 2012 |
| Wellington | 1 | 2024 | 1990 |
| Dalton | 1 | 2023 | 2011 |
| Coldwater | 1 | 1975 | 1975 |
Summer Tanager Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.