BirdAnalyst
Species · Oregon · BBS 2026 Release · 1966–2025

Rock Pigeon Population Trend in Oregon

All statesGeneralists

Rock Pigeon in Oregon has surged: up 104% on the route-weighted index since 1970.

+104%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 →
71Routes 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 Rock Pigeon 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 →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Rock Pigeon has surged in Oregon: up 104% on the route-weighted index since 1970.

Rock Pigeon Population Forecast in Oregon

If the recent trend holds, Rock Pigeon in Oregon is projected to fall about 56% by 2030 — from 4.2 in 2025 to a central estimate of 1.9 (95% range 0.00–4.7). A 5-year backtest shows a typical error of ±45.3%, with 100% of held-out values landing inside the 95% band.

-56%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 →
1.9Projected 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 →
0.00–4.795% 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 →
±45.3%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, Rock Pigeon in Oregon is projected to fall about 56% by 2030 — from 4.2 in 2025 to a central estimate of 1.9 (95% range 0.00–4.7). A 5-year backtest shows a typical error of ±45.3%, with 100% 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 →
20261.90.004.8
20271.90.004.8
20281.90.004.7
20291.90.004.7
20301.90.004.7

Rock Pigeon Survey Routes in Oregon

Routes recording Rock Pigeon 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 →
Adrian22320251984
Umatilla9020251988
Donnybrook5419971997
Ordnance4619791971
Lone Rock3620211971
Blitzen3219811981
Cecil3020251998
Flook Lake2820042001
Trout Creek2520212005
Adair1820251971
Montague1420251988
Sandy River1019991996
Blitzen 2820002000
Flora720021989
Deschutes720251970
Hauser719851971
Alvord Lake720211982
Emigrant Lk720001973
Sams Valley720081993
Shellrock619901990
Bridgeport620251988
Malheur Nwr619921990
Dayton620241973
Crane620041996
Princeton519841976

Rock Pigeon Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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