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Species · Kansas · BBS 2026 Release · 1966–2025

Common Yellowthroat Population Trend in Kansas

All statesForest birds

Common Yellowthroat in Kansas has surged: up 91% on the route-weighted index since 1969.

+91%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 →
56Routes 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 Common Yellowthroat 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 →

Common Yellowthroat has surged in Kansas: up 91% on the route-weighted index since 1969.

Common Yellowthroat Population Forecast in Kansas

If the recent trend holds, Common Yellowthroat in Kansas is projected to rise about 44% by 2030 — from 1.2 in 2025 to a central estimate of 1.7 (95% range 0.13–3.4). A 5-year backtest shows a typical error of ±38.4%, with 100% of held-out values landing inside the 95% band.

+44%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 →
1.7Projected 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 →
0.13–3.495% 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 →
±38.4%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, Common Yellowthroat in Kansas is projected to rise about 44% by 2030 — from 1.2 in 2025 to a central estimate of 1.7 (95% range 0.13–3.4). A 5-year backtest shows a typical error of ±38.4%, with 100% of held-out values landing inside the 95% band.19672030
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 →
20261.80.143.4
20271.80.143.4
20281.80.143.4
20291.70.133.4
20301.70.133.4

Common Yellowthroat Survey Routes in Kansas

Routes recording Common Yellowthroat 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 →
Albert1020251968
Trading Post1020252000
Severance920252000
Jewell520021998
Grantville420221967
Thrall319701967
Barclay320241967
Missler319851975
Le Loup320212000
Solomon320191985
Humboldt220221968
Coats220081978
Olathe220211969
Wreford220211967
Rock Creek220211968
Hanover220251969
Hollenberg220231969
Minneapolis220181977
Reece220212000
Hopewell220112000
Lincolnville220222003
Susank220142000
Longton220141977
Melrose120211967
Galesburg120181969

Common Yellowthroat Population Trend in Other States

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

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