Species · Colorado · BBS 2025 Release · 1966–2024
Hairy Woodpecker Population Trend in Colorado
Hairy Woodpecker in Colorado has surged: up 251% on the route-weighted index since 1971.
+251%Since 1971
91Routes In State
54Years
Notable Hairy Woodpecker Trends in Colorado
long arc increasecomputed index
Hairy Woodpecker has surged in Colorado: up 251% on the route-weighted index since 1971.
Hairy Woodpecker Population Forecast in Colorado
If the recent trend holds, Hairy Woodpecker in Colorado is projected to stay roughly flat through 2029, near 0.60 (95% range 0.40–0.81). A 5-year backtest shows a typical error of ±21.9%, with 100% of held-out values landing inside the 95% band.
-4%Change by 2029
0.60Projected 2029 index
0.40–0.8195% range
±21.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.57 | 0.36 | 0.77 |
| 2026 | 0.58 | 0.37 | 0.78 |
| 2027 | 0.59 | 0.38 | 0.79 |
| 2028 | 0.59 | 0.39 | 0.80 |
| 2029 | 0.60 | 0.40 | 0.81 |
Hairy Woodpecker Survey Routes in Colorado
| Blackhead Pk | 8 | 2021 | 1991 |
| Elbert | 8 | 2024 | 1998 |
| Comanche Pk | 7 | 2024 | 1995 |
| Gold Hill | 7 | 2012 | 1998 |
| Deadman Rd. | 5 | 2024 | 1996 |
| Pinon | 4 | 2024 | 1992 |
| Parlin | 3 | 2023 | 1979 |
| Dunckley Pas | 3 | 2023 | 1992 |
| Wet Mtns. | 3 | 2023 | 2017 |
| Cokedale | 3 | 2024 | 1995 |
| Lake City 2 | 3 | 2024 | 2017 |
| Baxter Pass | 3 | 2024 | 2024 |
| Marshall Pas | 3 | 2019 | 1995 |
| Gold Hill 2 | 3 | 2024 | 2018 |
| Yampa | 2 | 2021 | 1982 |
| Buford | 2 | 2023 | 1983 |
| Delta | 2 | 2021 | 1978 |
| Dolores | 2 | 1976 | 1976 |
| Pagosa Spgs | 2 | 1974 | 1970 |
| Villegreen | 2 | 2004 | 2004 |
| Buffalo Park | 2 | 2023 | 1992 |
| Thomasville | 2 | 2018 | 1997 |
| Steamboat L. | 2 | 2012 | 1998 |
| Basin | 2 | 2024 | 2007 |
| Rollins Pass | 2 | 2022 | 2008 |
Hairy Woodpecker Population Trend in Other States
alabamaalaskaarizonaarkansascaliforniaconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.