Species · Washington · BBS 2025 Release · 1966–2024
Western Grebe Population Trend in Washington
Western Grebe in Washington has fallen sharply: down 61% on the route-weighted index since 1990.
-61%Since 1990
7Routes In State
16Years
Notable Western Grebe Trends in Washington
long arc declinecomputed index
Western Grebe has fallen sharply in Washington: down 61% on the route-weighted index since 1990.
Western Grebe Survey Routes in Washington
| Hanford Site | 5 | 1996 | 1996 |
| Moses Lake | 2 | 2016 | 1988 |
| Horn Rapids | 2 | 2021 | 2013 |
| Brewster | 1 | 1999 | 1992 |
| Ewan | 1 | 2012 | 2012 |
| Mesa | 1 | 1997 | 1996 |
| Keystone | 1 | 2022 | 1997 |
Western Grebe Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.