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Species · BCR 25 · BBS 2026 Release · 1966–2025

Eastern Bluebird In West Gulf Coastal Plain / Ouachitas

All regionsWest Gulf Coastal Plain / OuachitasForest birds

Eastern Bluebird in West Gulf Coastal Plain / Ouachitas has edged down: down 22% on the route-weighted index since 1969.

-22%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 →
108Routes 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 →
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 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 Eastern Bluebird in West Gulf Coastal Plain / Ouachitas. See the full index history below.

Eastern Bluebird In West Gulf Coastal Plain / Ouachitas Population Forecast

If the recent trend holds, Eastern Bluebird in West Gulf Coastal Plain / Ouachitas is projected to rise about 11% by 2030 — from 6.9 in 2025 to a central estimate of 7.6 (95% range 3.5–12). A 5-year backtest shows a typical error of ±144.9%, with 20% of held-out values landing inside the 95% band.

+11%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 →
7.6Projected 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 →
3.5–1295% 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 →
±144.9%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, Eastern Bluebird in West Gulf Coastal Plain / Ouachitas is projected to rise about 11% by 2030 — from 6.9 in 2025 to a central estimate of 7.6 (95% range 3.5–12). A 5-year backtest shows a typical error of ±144.9%, with 20% 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 →
20267.63.512
20277.63.512
20287.63.512
20297.63.512
20307.63.512

Routes In West Gulf Coastal Plain / Ouachitas

Routes recording Eastern Bluebird in West Gulf Coastal Plain / Ouachitas.
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 →
CanadianOKLAHOMA212017
SandbluffOKLAHOMA212025
StarkARKANSAS192025
NanceARKANSAS182025
LivingstonTEXAS182025
AthensTEXAS182025
Chandler 2TEXAS182024
LongstreetLOUISIANA172025
BlancoOKLAHOMA172016
DerryLOUISIANA161989
IndianolaOKLAHOMA162025
DibollTEXAS162025
BlakelyARKANSAS141999
McalesterOKLAHOMA141991
PocolaOKLAHOMA142016
MatoyOKLAHOMA132025
ChandlerTEXAS132004
Easton 2TEXAS132025
SmyrnaTEXAS122010
CrowsARKANSAS111991
CartervilleLOUISIANA111992
LockesburgARKANSAS102019
Mer RougeLOUISIANA102008
HaughtonLOUISIANA102025
NatchezLOUISIANA102025

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