Species · Oregon · BBS 2025 Release · 1966–2024
Redhead Population Trend in Oregon
Redhead in Oregon has surged: up 239% on the route-weighted index since 1971.
+239%Since 1971
15Routes In State
52Years
Notable Redhead Trends in Oregon
long arc increasecomputed index
Redhead has surged in Oregon: up 239% on the route-weighted index since 1971.
Redhead Population Forecast in Oregon
If the recent trend holds, Redhead in Oregon is projected to fall about 13% by 2029 — from 1.7 in 2024 to a central estimate of 1.5 (95% range 0.00–7.1). A 5-year backtest shows a typical error of ±7171.6%, with 100% of held-out values landing inside the 95% band.
-13%Change by 2029
1.5Projected 2029 index
0.00–7.195% range
±7171.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.4 | 0.00 | 7.1 |
| 2026 | 1.4 | 0.00 | 7.1 |
| 2027 | 1.5 | 0.00 | 7.1 |
| 2028 | 1.5 | 0.00 | 7.1 |
| 2029 | 1.5 | 0.00 | 7.1 |
Redhead Survey Routes in Oregon
| Warner Vally | 159 | 2024 | 1993 |
| Harney Lake | 18 | 1999 | 1993 |
| Catlow Rim | 12 | 2017 | 2012 |
| Blizzard Gap | 7 | 2023 | 1984 |
| Bly | 2 | 1990 | 1990 |
| Clover Creek | 2 | 1989 | 1989 |
| Flook Lake | 2 | 2013 | 1999 |
| Malheur Nwr | 2 | 1998 | 1986 |
| Modoc Point | 2 | 2011 | 1970 |
| Umatilla | 1 | 1994 | 1992 |
| Dell Spring | 1 | 1969 | 1969 |
| Princeton | 1 | 1984 | 1972 |
| Buchanan | 1 | 1988 | 1988 |
| Fish Lake | 1 | 2021 | 1972 |
| Alvord Lake | 1 | 2022 | 2022 |
Redhead Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.