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

Rock Pigeon Population Trend in Idaho

All statesGeneralists

Rock Pigeon in Idaho has increased: up 27% on the route-weighted index since 1970.

+27%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 →
40Routes 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 IdahoNotable 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 Rock Pigeon in Idaho. See the full index history below.

Rock Pigeon Population Forecast in Idaho

If the recent trend holds, Rock Pigeon in Idaho is projected to fall about 42% by 2030 — from 8.7 in 2025 to a central estimate of 5.1 (95% range 0.00–11). A 5-year backtest shows a typical error of ±58.7%, with 100% of held-out values landing inside the 95% band.

-42%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 →
5.1Projected 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 →
0.00–1195% 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 →
±58.7%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 Idaho is projected to fall about 42% by 2030 — from 8.7 in 2025 to a central estimate of 5.1 (95% range 0.00–11). A 5-year backtest shows a typical error of ±58.7%, 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 →
20265.00.0011
20275.00.0011
20285.00.0011
20295.10.0011
20305.10.0011

Rock Pigeon Survey Routes in Idaho

Routes recording Rock Pigeon in Idaho.
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 →
Ririe13220251971
Mud Lake7420251988
Mora5620252018
Pocatello4120191979
Blacks Creek3220171971
Pasadena Val2220161987
Picabo1620181988
Glenns Ferry1519861968
Cedar Hill1520241990
Daniels Res1520251989
Featherville1420151989
Crane Creek1220151990
Almo1120251988
Craters920181979
Dubois820251982
Leadore620241981
Salmon River620251988
Circular Bu519981994
Bates520161988
Challis420121983
Triangle420211986
Henry419791974
Naples320222005
Baker320241987
Squirrel320141971

Rock Pigeon Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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