Species · Oregon · BBS 2025 Release · 1966–2024
Canvasback Population Trend in Oregon
Canvasback in Oregon has surged: up 461% on the route-weighted index since 1976.
+461%Since 1976
11Routes In State
39Years
Notable Canvasback Trends in Oregon
long arc increasecomputed index
Canvasback has surged in Oregon: up 461% on the route-weighted index since 1976.
Canvasback Population Forecast in Oregon
If the recent trend holds, Canvasback in Oregon is projected to fall about 100% by 2029 — from 0.65 in 2024 to a central estimate of 0.00 (95% range 0.00–3.0). A 5-year backtest shows a typical error of ±619%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–3.095% range
±619%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 3.0 |
| 2026 | 0.00 | 0.00 | 3.0 |
| 2027 | 0.00 | 0.00 | 3.0 |
| 2028 | 0.00 | 0.00 | 3.0 |
| 2029 | 0.00 | 0.00 | 3.0 |
Canvasback Survey Routes in Oregon
| Warner Vally | 60 | 2024 | 1994 |
| Princeton | 10 | 1984 | 1979 |
| Catlow Rim | 5 | 2017 | 2017 |
| Sheaville | 4 | 2015 | 2015 |
| Modoc Point | 4 | 2018 | 1971 |
| Merrill | 2 | 2002 | 2002 |
| Clover Creek | 2 | 1989 | 1989 |
| Malheur Nwr | 2 | 1993 | 1990 |
| Blizzard Gap | 2 | 2016 | 1985 |
| Harney Lake | 1 | 1999 | 1999 |
| Fish Lake | 1 | 2001 | 1986 |
Canvasback Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.