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

Red Crossbill Population Trend in Oregon

All statesGeneralists

Red Crossbill in Oregon has edged up: up 19% on the route-weighted index since 1970.

+19%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 →
92Routes 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 →
56YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Red Crossbill 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 Red Crossbill in Oregon. See the full index history below.

Red Crossbill Population Forecast in Oregon

If the recent trend holds, Red Crossbill in Oregon is projected to stay roughly flat through 2029, near 4.3 (95% range 0.00–11). A 5-year backtest shows a typical error of ±29.5%, with 80% of held-out values landing inside the 95% band.

+2%Change by 2029TrendPercent 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 →
4.3Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–1195% 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 →
±29.5%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, Red Crossbill in Oregon is projected to stay roughly flat through 2029, near 4.3 (95% range 0.00–11). A 5-year backtest shows a typical error of ±29.5%, with 80% of held-out values landing inside the 95% band.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 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 →
20254.30.0011
20264.30.0011
20274.30.0011
20284.30.0011
20294.30.0011

Red Crossbill Survey Routes in Oregon

Routes recording Red Crossbill 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 →
Mount Vernon12420241986
Camp Sherman5119961972
Eagle Rock4619791971
Logdell3520221972
Scio3520052000
Secret Val3419881988
Silver Creek3220241984
Sisters2920241997
Glasgow2720241987
Donnelly2720061995
Svensen2419921990
Silvies2420241995
Days Creek2220211974
Granite2220221986
Black Mtn.2020041998
Albee1720241968
Hash Rock1620241983
Trask Summit1520231992
Desolation1520071993
Riley Peak1520141994
Umpqua1420242005
Howard Mdws.1420241993
Shellrock1220231968
Wizard Falls1220231998
Winberry1020231996

Red Crossbill Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradogeorgiaidahoillinoismainemarylandmassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-mexiconew-yorknorth-carolinanorth-dakotapennsylvaniasouth-carolinasouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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