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Species · Kansas · BBS 2025 Release · 1966–2024

Yellow-throated Vireo Population Trend in Kansas

All statesForest birds

Yellow-throated Vireo in Kansas has surged: up 529% on the route-weighted index since 1988.

+529%Since 1988TrendPercent 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 →
16Routes 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 →
27YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Yellow-throated Vireo 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 →

Yellow-throated Vireo has surged in Kansas: up 529% on the route-weighted index since 1988.

Yellow-throated Vireo Population Forecast in Kansas

If the recent trend holds, Yellow-throated Vireo in Kansas is projected to rise about 51% by 2029 — from 0.15 in 2024 to a central estimate of 0.23 (95% range 0.12–0.35). A 5-year backtest shows a typical error of ±26.2%, with 60% of held-out values landing inside the 95% band.

+51%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 →
0.23Projected 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 →
0.12–0.3595% 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 →
±26.2%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, Yellow-throated Vireo in Kansas is projected to rise about 51% by 2029 — from 0.15 in 2024 to a central estimate of 0.23 (95% range 0.12–0.35). A 5-year backtest shows a typical error of ±26.2%, with 60% of held-out values landing inside the 95% band.19772029
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 →
20250.210.090.33
20260.220.100.33
20270.220.100.34
20280.230.110.34
20290.230.120.35

Yellow-throated Vireo Survey Routes in Kansas

Routes recording Yellow-throated Vireo 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 →
Seneca320222002
Bucyrus220242023
Severance220232000
Le Loup220212001
Grantville220192007
Dalton120182018
Olathe120141981
Dover120222013
Barclay119771977
Wreford120242005
Pittsburg120182018
Morehead120232004
Trading Post120232005
Rock Creek120211988
Hanover120212016
Olsburg120242024

Yellow-throated Vireo Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin

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