Species · Iowa · BBS 2025 Release · 1966–2024
Ovenbird Population Trend in Iowa
Ovenbird in Iowa has edged down: down 16% on the route-weighted index since 1973.
-16%Since 1973
10Routes In State
32Years
Notable Ovenbird Trends in Iowa
No notable trend signals for Ovenbird in Iowa. See the full index history below.
Ovenbird Population Forecast in Iowa
If the recent trend holds, Ovenbird in Iowa is projected to fall about 26% by 2022 — from 0.08 in 2017 to a central estimate of 0.06 (95% range 0.00–0.12). A 5-year backtest shows a typical error of ±29.5%, with 100% of held-out values landing inside the 95% band.
-26%Change by 2022
0.06Projected 2022 index
0.00–0.1295% range
±29.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2018 | 0.06 | 0.00 | 0.12 |
| 2019 | 0.06 | 0.00 | 0.12 |
| 2020 | 0.06 | 0.00 | 0.12 |
| 2021 | 0.06 | 0.00 | 0.12 |
| 2022 | 0.06 | 0.00 | 0.12 |
Ovenbird Survey Routes in Iowa
| Mt Hamill | 2 | 2017 | 1972 |
| Exline | 1 | 1984 | 1984 |
| Cedar Valley | 1 | 1989 | 1968 |
| Red Rock | 1 | 2007 | 2007 |
| Washington | 1 | 1974 | 1974 |
| Alice | 1 | 1972 | 1972 |
| Pierson | 1 | 2009 | 2009 |
| Washta | 1 | 1997 | 1997 |
| Festina | 1 | 1993 | 1993 |
| Garner | 1 | 1987 | 1987 |
Ovenbird Population Trend in Other States
alabamaarkansascoloradoconnecticutdelawaregeorgiaillinoisindianakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseeutahvermontvirginiawest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.