BirdAnalyst
Species · BCR 27 · BBS 2026 Release · 1966–2025

Eastern Bluebird In Southeastern Coastal Plain

All regionsSoutheastern Coastal PlainForest birds

Eastern Bluebird in Southeastern Coastal Plain has surged: up 236% on the route-weighted index since 1968.

+236%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 →
340Routes 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 →

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 →

Eastern Bluebird has surged in Southeastern Coastal Plain: up 236% on the route-weighted index since 1968.

Eastern Bluebird In Southeastern Coastal Plain Population Forecast

If the recent trend holds, Eastern Bluebird in Southeastern Coastal Plain is projected to rise about 16% by 2030 — from 11 in 2025 to a central estimate of 13 (95% range 10–15). A 5-year backtest shows a typical error of ±18.9%, with 80% of held-out values landing inside the 95% band.

+16%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 →
13Projected 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 →
10–1595% 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 →
±18.9%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 Southeastern Coastal Plain is projected to rise about 16% by 2030 — from 11 in 2025 to a central estimate of 13 (95% range 10–15). A 5-year backtest shows a typical error of ±18.9%, 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 →
2026129.815
20271210.015
2028131015
2029131015
2030131015

Routes In Southeastern Coastal Plain

Routes recording Eastern Bluebird in Southeastern Coastal Plain.
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 →
LovedaleFLORIDA692011
HumboldtTENNESSEE482025
Myrtle GroveNORTH-CAROLINA422025
ShilohGEORGIA402025
Big SandyTENNESSEE382025
Latimer 2MISSISSIPPI342023
HendersonGEORGIA332025
PinewoodSOUTH-CAROLINA332019
WeberGEORGIA322025
CowardSOUTH-CAROLINA312025
JacksonNORTH-CAROLINA302017
St FlorianALABAMA292025
OusleyGEORGIA292025
Wards CornerNORTH-CAROLINA292024
MansfieldTENNESSEE292025
Laurel HillFLORIDA282025
FairviewALABAMA272025
ElamvilleALABAMA262025
HilliardFLORIDA262025
Olive BranchMISSISSIPPI252001
South. PinesNORTH-CAROLINA251996
MadridALABAMA242023
BettsFLORIDA242025
DudleyNORTH-CAROLINA242025
CyburMISSISSIPPI232019

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