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

Gray Catbird Population Trend in Indiana

All statesGeneralists

Gray Catbird in Indiana has increased: up 28% on the route-weighted index since 1968.

+28%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 →
69Routes 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 Gray Catbird 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 Gray Catbird in Indiana. See the full index history below.

Gray Catbird Population Forecast in Indiana

If the recent trend holds, Gray Catbird in Indiana is projected to rise about 15% by 2029 — from 6.0 in 2024 to a central estimate of 6.9 (95% range 4.7–9.2). A 5-year backtest shows a typical error of ±28%, with 100% of held-out values landing inside the 95% band.

+15%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 →
6.9Projected 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 →
4.7–9.295% 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 →
±28%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, Gray Catbird in Indiana is projected to rise about 15% by 2029 — from 6.0 in 2024 to a central estimate of 6.9 (95% range 4.7–9.2). A 5-year backtest shows a typical error of ±28%, 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 →
20256.84.69.1
20266.94.69.1
20276.94.69.1
20286.94.69.2
20296.94.79.2

Gray Catbird Survey Routes in Indiana

Routes recording Gray Catbird 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 →
Lakeville2220241993
Packertown1920041967
Galveston1520241981
Indiana Dune1520241993
Friendswood1420241986
Wallace1420241999
Brookville1320241966
Ellis1220241966
Packertown 21220242005
Portage1120042000
Knox1020241981
Thorntown1020241982
Azalia1020241982
Vevay1020241966
Portage 21020242005
Hebron920221966
Monticello920241981
Belmont920241981
Laporte920241999
Montpelier920242018
Anderson920242000
Brazil720241966
Spencer720241967
Lagrange720241999
New Castle720242002

Gray Catbird Population Trend in Other States

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

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