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

Rock Pigeon Population Trend in Indiana

All statesGeneralists

Rock Pigeon in Indiana has edged down: down 10% on the route-weighted index since 1968.

-10%Since 1968TrendPercent 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 →
67Routes 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 →
58YearsYears 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 IndianaNotable 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 Indiana. See the full index history below.

Rock Pigeon Population Forecast in Indiana

If the recent trend holds, Rock Pigeon in Indiana is projected to stay roughly flat through 2029, near 7.8 (95% range 0.61–15). A 5-year backtest shows a typical error of ±51.9%, with 100% of held-out values landing inside the 95% band.

+6%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 →
7.8Projected 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 →
0.61–1595% 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 →
±51.9%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 Indiana is projected to stay roughly flat through 2029, near 7.8 (95% range 0.61–15). A 5-year backtest shows a typical error of ±51.9%, with 100% of held-out values landing inside the 95% band.19662029
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 →
20258.20.9915
20268.10.9015
20278.00.8015
20287.90.7115
20297.80.6115

Rock Pigeon Survey Routes in Indiana

Routes recording Rock Pigeon in Indiana.
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 →
Gary16919991980
Packertown9720041967
Middlebury8820241989
Decatur8220241999
Portage4020042001
Maplewood2620212000
Lakeville2620231993
Wabash2420241981
Frankfort2320221999
Portage 22320242005
Packertown 22320242005
Newberry2220241999
Lagrange1820241999
Pimento1720221981
Jamestown1720241986
Rensselaer1720241999
Laporte1520241999
Swayzee1320231981
Columbia Cty1220241981
Tipton1019921966
Berne920231966
Monticello820231981
Indiana Dune820181993
W Lafayette720241981
Clear Spring720241981

Rock Pigeon Population Trend in Other States

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

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