Species · Idaho · BBS 2025 Release · 1966–2024
American Redstart Population Trend in Idaho
American Redstart in Idaho has fallen sharply: down 71% on the route-weighted index since 1975.
-71%Since 1975
12Routes In State
46Years
Notable American Redstart Trends in Idaho
long arc declinecomputed index
American Redstart has fallen sharply in Idaho: down 70% on the route-weighted index since 1975.
American Redstart Population Forecast in Idaho
If the recent trend holds, American Redstart in Idaho is projected to fall about 100% by 2029 — from 0.12 in 2024 to a central estimate of 0.00 (95% range 0.00–0.33). A 5-year backtest shows a typical error of ±124.8%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–0.3395% range
±124.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.01 | 0.00 | 0.34 |
| 2026 | 0.00 | 0.00 | 0.33 |
| 2027 | 0.00 | 0.00 | 0.33 |
| 2028 | 0.00 | 0.00 | 0.33 |
| 2029 | 0.00 | 0.00 | 0.33 |
American Redstart Survey Routes in Idaho
| Marble Creek | 3 | 1990 | 1990 |
| Cascade | 3 | 1984 | 1984 |
| Naples | 2 | 2024 | 1972 |
| Rochat Divde | 2 | 2023 | 1998 |
| Mivoden | 1 | 2018 | 1977 |
| Avery | 1 | 2016 | 2014 |
| Lolo Pass | 1 | 1993 | 1993 |
| N Fork Cda R | 1 | 1993 | 1993 |
| Pierce | 1 | 2007 | 2007 |
| Cabarton | 1 | 2016 | 1986 |
| Centerville | 1 | 1984 | 1984 |
| Coolin | 1 | 2024 | 1986 |
American Redstart Population Trend in Other States
alabamaalaskaarkansascoloradoconnecticutdelawaregeorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.