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Species · Kansas · BBS 2025 Release · 1966–2024

Great Horned Owl Population Trend in Kansas

All statesGeneralists

Great Horned Owl in Kansas has held roughly steady: down 7% on the route-weighted index since 1969.

-7%Since 1969TrendPercent 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 →
63Routes 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 Great Horned Owl Trends in KansasNotable 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 Great Horned Owl in Kansas. See the full index history below.

Great Horned Owl Population Forecast in Kansas

If the recent trend holds, Great Horned Owl in Kansas is projected to rise about 23% by 2029 — from 0.50 in 2024 to a central estimate of 0.61 (95% range 0.07–1.2). A 5-year backtest shows a typical error of ±58.8%, with 100% of held-out values landing inside the 95% band.

+23%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 →
0.61Projected 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 →
0.07–1.295% 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 →
±58.8%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, Great Horned Owl in Kansas is projected to rise about 23% by 2029 — from 0.50 in 2024 to a central estimate of 0.61 (95% range 0.07–1.2). A 5-year backtest shows a typical error of ±58.8%, with 100% of held-out values landing inside the 95% band.19672029
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 →
20250.630.081.2
20260.620.081.2
20270.620.071.2
20280.620.071.2
20290.610.071.2

Great Horned Owl Survey Routes in Kansas

Routes recording Great Horned Owl in Kansas.
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 →
Leoville420171970
Morehead320192002
Ulysses320222000
Trading Post320232000
Susank320222005
Galesburg220181973
Humboldt220171968
Dalton220241968
St John220181980
Ashland220211982
Olathe220171969
Barclay220241967
Wreford220241969
Gray220181967
Hays220141968
Grantville220171976
Hanover220141972
Seneca220181970
Minneapolis220141967
Covert220211969
Gove220221976
Ruleton220181991
Reece220042000
Ash Valley220192000
Olsburg220122001

Great Horned Owl Population Trend in Other States

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

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