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

Red-tailed Hawk Population Trend in Kansas

All statesGeneralists

Red-tailed Hawk in Kansas has risen sharply: up 72% on the route-weighted index since 1969.

+72%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 →
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 →
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 Red-tailed Hawk 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 →

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 →

Red-tailed Hawk has risen sharply in Kansas: up 72% on the route-weighted index since 1969.

Red-tailed Hawk Population Forecast in Kansas

If the recent trend holds, Red-tailed Hawk in Kansas is projected to rise about 15% by 2029 — from 3.2 in 2024 to a central estimate of 3.6 (95% range 2.9–4.4). A 5-year backtest shows a typical error of ±16.3%, with 80% 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 →
3.6Projected 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 →
2.9–4.495% 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 →
±16.3%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, Red-tailed Hawk in Kansas is projected to rise about 15% by 2029 — from 3.2 in 2024 to a central estimate of 3.6 (95% range 2.9–4.4). A 5-year backtest shows a typical error of ±16.3%, with 80% 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 →
20253.52.74.3
20263.52.84.3
20273.62.84.3
20283.62.84.4
20293.62.94.4

Red-tailed Hawk Survey Routes in Kansas

Routes recording Red-tailed Hawk 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 →
Trading Post1220242000
Humboldt1120221969
Grantville820221969
Jewell820051967
Dover720221967
Kanopolis720241967
Logan720221967
Pittsburg720212000
Severance720242000
Thrall619701967
Coats620241967
Covert620241968
Damar620162000
Jewell 2620242006
Ashland520211970
Barclay520241967
Beloit520032000
Coldwater420221972
Rock Creek420211972
Seneca420221967
Missler420191977
Berwet420242000
Le Loup420212000
Susank420222000
Dalton320241968

Red-tailed Hawk 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.