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Species · Oregon · BBS 2026 Release · 1966–2025

Golden-crowned Kinglet Population Trend in Oregon

All statesForest birds

Golden-crowned Kinglet in Oregon has held roughly steady: down 3% on the route-weighted index since 1970.

-3%Since 1970TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
89Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Golden-crowned Kinglet Trends in OregonNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Golden-crowned Kinglet in Oregon. See the full index history below.

Golden-crowned Kinglet Population Forecast in Oregon

If the recent trend holds, Golden-crowned Kinglet in Oregon is projected to rise about 55% by 2030 — from 1.8 in 2025 to a central estimate of 2.8 (95% range 1.2–4.4). A 5-year backtest shows a typical error of ±87.4%, with 80% of held-out values landing inside the 95% band.

+55%Change by 2030TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
2.8Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
1.2–4.495% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±87.4%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Golden-crowned Kinglet in Oregon is projected to rise about 55% by 2030 — from 1.8 in 2025 to a central estimate of 2.8 (95% range 1.2–4.4). A 5-year backtest shows a typical error of ±87.4%, with 80% of held-out values landing inside the 95% band.19682030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20262.81.14.4
20272.81.24.4
20282.81.24.4
20292.81.24.4
20302.81.24.4

Golden-crowned Kinglet Survey Routes in Oregon

Routes recording Golden-crowned Kinglet in Oregon.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Shellrock1820241968
Trask Summit1820231992
Molalla1720251994
Cinderella1620251993
Eagle Creek1420251993
Svensen1319921990
Santiam1120251994
Black Mtn.1020041993
Bull Run1020252007
Hash Rock920251983
Nicolai Mtn.920251993
Howard Mdws.920251992
Ruch920251992
Desolation920251998
Wickiup720251970
Clearwater720251991
Cool Camp620131969
Wedderburn620241970
Myrtle Grove620241992
Sisters620242000
Dell Spring519881968
Barnes Val519871987
Secret Val519931975
Glasgow520251988
Troy520251992

Golden-crowned Kinglet Population Trend in Other States

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Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.