Species · Kansas · BBS 2025 Release · 1966–2024
Willow Flycatcher Population Trend in Kansas
Willow Flycatcher in Kansas has edged up: up 24% on the route-weighted index since 1981.
+24%Since 1981
11Routes In State
23Years
Notable Willow Flycatcher Trends in Kansas
No notable trend signals for Willow Flycatcher in Kansas. See the full index history below.
Willow Flycatcher Population Forecast in Kansas
If the recent trend holds, Willow Flycatcher in Kansas is projected to stay roughly flat through 2027, near 0.03 (95% range 0.00–0.06). A 5-year backtest shows a typical error of ±55.7%, with 80% of held-out values landing inside the 95% band.
n/aChange by 2027
0.03Projected 2027 index
0.00–0.0695% range
±55.7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2023 | 0.03 | 0.00 | 0.06 |
| 2024 | 0.03 | 0.00 | 0.06 |
| 2025 | 0.03 | 0.00 | 0.06 |
| 2026 | 0.03 | 0.00 | 0.06 |
| 2027 | 0.03 | 0.00 | 0.06 |
Willow Flycatcher Survey Routes in Kansas
Willow Flycatcher Population Trend in Other States
alaskaarizonaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.