BirdAnalyst
Species · Washington · BBS 2025 Release · 1966–2024

Bushtit Population Trend in Washington

All statesGeneralists

Bushtit in Washington has declined: down 37% on the route-weighted index since 1970.

-37%Since 1970
32Routes In State
55Years

Notable Bushtit Trends in Washington

No notable trend signals for Bushtit in Washington. See the full index history below.

Bushtit Population Forecast in Washington

If the recent trend holds, Bushtit in Washington is projected to fall about 60% by 2029 — from 0.42 in 2024 to a central estimate of 0.17 (95% range 0.00–0.90). A 5-year backtest shows a typical error of ±39.7%, with 100% of held-out values landing inside the 95% band.

-60%Change by 2029
0.17Projected 2029 index
0.00–0.9095% range
±39.7%Backtest error
19682029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20250.200.000.93
20260.200.000.92
20270.190.000.91
20280.180.000.90
20290.170.000.90

Bushtit Survey Routes in Washington

Routes recording Bushtit in Washington.
Issaquah1319861972
Camas1220051977
Ozette1019941994
Vashon Is.820241996
Deception720171993
Everett720241976
Mendota 2619971989
Kamilche519951978
Index519701968
Bunker Hill520101969
Rainier520171994
Ronald419911991
Ilwaco420231980
Pe Ell420161993
Mendota319881977
Mendota 3320242006
Port Angeles220241980
Warm Beach220131970
Newhalem220061980
Twisp219961996
Cougar219911991
Kendall220241986
Raymond220212005
Warm Beach 2220242018
Carnation220181988

Bushtit Population Trend in Other States

arizonacaliforniacoloradoidahonevadanew-mexicooregontexasutahwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.