Species · Utah · BBS 2025 Release · 1966–2024
Canvasback Population Trend in Utah
Canvasback in Utah has surged: up 173% on the route-weighted index since 1994.
+173%Since 1994
7Routes In State
29Years
Notable Canvasback Trends in Utah
long arc increasecomputed index
Canvasback has surged in Utah: up 173% on the route-weighted index since 1994.
Canvasback Population Forecast in Utah
If the recent trend holds, Canvasback in Utah is projected to rise about 61% by 2029 — from 0.15 in 2024 to a central estimate of 0.25 (95% range 0.00–0.60). A 5-year backtest shows a typical error of ±568.5%, with 100% of held-out values landing inside the 95% band.
+61%Change by 2029
0.25Projected 2029 index
0.00–0.6095% range
±568.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.24 | 0.00 | 0.59 |
| 2026 | 0.24 | 0.00 | 0.59 |
| 2027 | 0.24 | 0.00 | 0.60 |
| 2028 | 0.25 | 0.00 | 0.60 |
| 2029 | 0.25 | 0.00 | 0.60 |
Canvasback Survey Routes in Utah
| Randolph | 7 | 2024 | 1992 |
| Callao | 6 | 2022 | 1992 |
| Neponset Res | 5 | 2017 | 1995 |
| Woodruff | 2 | 2024 | 2017 |
| Moon Lake | 2 | 2000 | 2000 |
| Saleratus Cr | 1 | 2005 | 1998 |
| Bear River | 1 | 2005 | 2005 |
Canvasback Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.