Species · Washington · BBS 2025 Release · 1966–2024
Northern Pygmy-Owl Population Trend in Washington
Northern Pygmy-Owl in Washington has held roughly steady: down 4% on the route-weighted index since 1983.
-4%Since 1983
41Routes In State
36Years
Notable Northern Pygmy-Owl Trends in Washington
No notable trend signals for Northern Pygmy-Owl in Washington. See the full index history below.
Northern Pygmy-Owl Population Forecast in Washington
If the recent trend holds, Northern Pygmy-Owl in Washington is projected to fall about 54% by 2029 — from 0.07 in 2024 to a central estimate of 0.03 (95% range 0.00–0.08). A 5-year backtest shows a typical error of ±53.8%, with 60% of held-out values landing inside the 95% band.
-54%Change by 2029
0.03Projected 2029 index
0.00–0.0895% range
±53.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.03 | 0.00 | 0.08 |
| 2026 | 0.03 | 0.00 | 0.08 |
| 2027 | 0.03 | 0.00 | 0.08 |
| 2028 | 0.03 | 0.00 | 0.08 |
| 2029 | 0.03 | 0.00 | 0.08 |
Northern Pygmy-Owl Survey Routes in Washington
| Montesand | 2 | 2005 | 2005 |
| E. Mt. Adams | 2 | 2015 | 2015 |
| Raymond 2 | 2 | 2023 | 2023 |
| Omak Creek | 2 | 2021 | 1998 |
| Greenwater | 2 | 2022 | 2022 |
| Twisp | 1 | 2022 | 2022 |
| No Cascades | 1 | 2016 | 1996 |
| Chewelah | 1 | 2003 | 2003 |
| Kamilche | 1 | 1995 | 1995 |
| Issaquah | 1 | 1980 | 1980 |
| Turnbull Nwr | 1 | 2016 | 1997 |
| L Pend O Nwr | 1 | 2017 | 2014 |
| Mendota 2 | 1 | 1993 | 1993 |
| Reardan | 1 | 1985 | 1985 |
| Bunker Hill | 1 | 2024 | 2024 |
| Mcchord | 1 | 1997 | 1997 |
| Rimrock | 1 | 2015 | 1987 |
| Camas | 1 | 2006 | 2006 |
| Sullivan Lake 2 | 1 | 2019 | 2009 |
| Twin Lakes | 1 | 2009 | 1983 |
| Ilwaco | 1 | 2024 | 2022 |
| South Elma | 1 | 1998 | 1998 |
| Packwood | 1 | 2002 | 1977 |
| Ellensburg | 1 | 2015 | 2015 |
| Spring Lake | 1 | 2016 | 2016 |
Northern Pygmy-Owl Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.