BirdAnalyst
Species · BCR 21 · BBS 2025 Release · 1966–2024

Blue Jay In Oaks and Prairies

All regionsOaks and PrairiesGeneralists

Blue Jay in Oaks and Prairies has held roughly steady: up 5% on the route-weighted index since 1969.

+5%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 →
68Routes In RegionSurvey 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 SignalsNotable 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 Blue Jay in Oaks and Prairies. See the full index history below.

Blue Jay In Oaks and Prairies Population Forecast

If the recent trend holds, Blue Jay in Oaks and Prairies is projected to stay roughly flat through 2029, near 5.3 (95% range 3.6–7.0). A 5-year backtest shows a typical error of ±19.1%, with 100% of held-out values landing inside the 95% band.

+3%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 →
5.3Projected 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 →
3.6–7.095% 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 →
±19.1%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, Blue Jay in Oaks and Prairies is projected to stay roughly flat through 2029, near 5.3 (95% range 3.6–7.0). A 5-year backtest shows a typical error of ±19.1%, 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 →
20255.33.67.1
20265.33.67.0
20275.33.67.0
20285.33.67.0
20295.33.67.0

Routes In Oaks and Prairies

Routes recording Blue Jay in Oaks and Prairies.
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 →
Miller GroveTEXAS172024
Wills PointTEXAS172023
OakwoodTEXAS161995
CayugaTEXAS152024
Massey LakeTEXAS132024
DikeTEXAS132024
RhomeTEXAS132024
DallasTEXAS122024
Mount ZionTEXAS122024
Oak GroveTEXAS111999
HearneTEXAS112024
Mill CreekOKLAHOMA102018
Oak Grove 2TEXAS102024
BarnsdallOKLAHOMA91977
PaigeTEXAS92024
Thornton 3TEXAS82024
NobleOKLAHOMA72024
GauseTEXAS71997
KosseTEXAS72023
Glen RoseTEXAS72024
WeatherfordTEXAS72024
LydiaTEXAS72023
BonnerTEXAS72024
Gambill Ref.TEXAS72024
BartlesvilleOKLAHOMA62024

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