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Species · Kentucky · BBS 2025 Release · 1966–2024

Yellow-throated Vireo Population Trend in Kentucky

All statesForest birds

Yellow-throated Vireo in Kentucky has risen sharply: up 63% on the route-weighted index since 1968.

+63%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 →
61Routes 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 Yellow-throated Vireo Trends in KentuckyNotable 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 risen sharply in Kentucky: up 63% on the route-weighted index since 1968.

Yellow-throated Vireo Population Forecast in Kentucky

If the recent trend holds, Yellow-throated Vireo in Kentucky is projected to rise about 18% by 2029 — from 2.4 in 2024 to a central estimate of 2.9 (95% range 2.0–3.7). A 5-year backtest shows a typical error of ±13.5%, with 100% of held-out values landing inside the 95% band.

+18%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 →
2.9Projected 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 →
2.0–3.795% 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 →
±13.5%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 Kentucky is projected to rise about 18% by 2029 — from 2.4 in 2024 to a central estimate of 2.9 (95% range 2.0–3.7). A 5-year backtest shows a typical error of ±13.5%, 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 →
20252.71.93.6
20262.81.93.6
20272.81.93.7
20282.82.03.7
20292.92.03.7

Yellow-throated Vireo Survey Routes in Kentucky

Routes recording Yellow-throated Vireo in Kentucky.
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 →
Beattyville 21320242006
Pine Ridge1219781966
Kehoe1219921972
Monticello1020221968
Cumberlnd Gp920181966
Staffordsvil919971996
Pippa Passes619971988
Merrimac620241967
Johnsonville620211972
Joy620231981
Carter620241976
Levee519821966
Daniel Boone519881966
Mammoth Cave North520132009
Brownsville420242022
Hegira420241988
Kehoe 2420242005
Hudson420241966
Glencoe420181966
Porter420241966
Mammoth Cave420141995
Bays Fork420191999
Phelps419971979
Dixon320242005
Mckee320241968

Yellow-throated Vireo Population Trend in Other States

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

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