Species · Washington · BBS 2025 Release · 1966–2024
Canvasback Population Trend in Washington
Canvasback in Washington has declined: down 49% on the route-weighted index since 1986.
-49%Since 1986
7Routes In State
16Years
Notable Canvasback Trends in Washington
No notable trend signals for Canvasback in Washington. See the full index history below.
Canvasback Survey Routes in Washington
| Brewster | 8 | 2012 | 1983 |
| Wilbur | 3 | 1988 | 1984 |
| Potholes | 3 | 1997 | 1997 |
| Twin Lakes | 2 | 1988 | 1988 |
| Moses Coulee | 1 | 2023 | 2023 |
| Mercer | 1 | 1986 | 1986 |
| Keystone | 1 | 2006 | 2006 |
Canvasback Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.