BirdAnalyst
Species · BCR 24 · BBS 2026 Release · 1966–2025

Eastern Bluebird In Central Hardwoods

All regionsCentral HardwoodsForest birds

Eastern Bluebird in Central Hardwoods has declined: down 29% on the route-weighted index since 1968.

-29%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 →
166Routes 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 →
59YearsYears 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 Central Hardwoods. See the full index history below.

Eastern Bluebird In Central Hardwoods Population Forecast

If the recent trend holds, Eastern Bluebird in Central Hardwoods is projected to stay roughly flat through 2030, near 11 (95% range 4.9–17). A 5-year backtest shows a typical error of ±63.8%, with 80% of held-out values landing inside the 95% band.

+6%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 →
11Projected 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 →
4.9–1795% 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 →
±63.8%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 Central Hardwoods is projected to stay roughly flat through 2030, near 11 (95% range 4.9–17). A 5-year backtest shows a typical error of ±63.8%, with 80% of held-out values landing inside the 95% band.19662030
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 →
2026114.917
2027114.917
2028114.917
2029114.917
2030114.917

Routes In Central Hardwoods

Routes recording Eastern Bluebird in Central Hardwoods.
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 →
CollinwoodTENNESSEE412025
Indian MoundTENNESSEE291998
Bays ForkKENTUCKY282019
PulaskiILLINOIS272025
ElkmontALABAMA262025
BelknapILLINOIS262025
CascadeMISSOURI262025
MillerMISSOURI262025
PeytonsvilleTENNESSEE252025
Levee 2KENTUCKY242019
Osage BeachMISSOURI232025
HillsboroALABAMA221996
Iron BridgeKENTUCKY221998
SyracuseMISSOURI222024
RiverqueenKENTUCKY212025
GraydonMISSOURI212025
WhitewaterMISSOURI212025
BremenILLINOIS202025
AkersMISSOURI202025
MerrimacKENTUCKY192024
RoyaltonILLINOIS182025
SpencerINDIANA182024
ScottsburgINDIANA182025
HaydenMISSOURI182025
Union HillTENNESSEE182024

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