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

Indigo Bunting In Southeastern Coastal Plain

All regionsSoutheastern Coastal PlainForest birds

Indigo Bunting in Southeastern Coastal Plain has edged up: up 14% on the route-weighted index since 1968.

+14%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 →

No notable trend signals for Indigo Bunting in Southeastern Coastal Plain. See the full index history below.

Indigo Bunting In Southeastern Coastal Plain Population Forecast

If the recent trend holds, Indigo Bunting in Southeastern Coastal Plain is projected to stay roughly flat through 2030, near 21 (95% range 17–25). A 5-year backtest shows a typical error of ±15%, with 100% 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 →
21Projected 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 →
17–2595% 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 →
±15%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, Indigo Bunting in Southeastern Coastal Plain is projected to stay roughly flat through 2030, near 21 (95% range 17–25). A 5-year backtest shows a typical error of ±15%, with 100% 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 →
2026211725
2027211725
2028211725
2029211725
2030211725

Routes In Southeastern Coastal Plain

Routes recording Indigo Bunting 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 →
MansfieldTENNESSEE1272025
HumboldtTENNESSEE1042025
Big SandyTENNESSEE1022025
EpesALABAMA712024
CorinthMISSISSIPPI662025
JacksonNORTH-CAROLINA662017
NewvilleVIRGINIA612024
SurryVIRGINIA602025
Rock ChapelALABAMA592024
MoscowTENNESSEE582025
NewsomsVIRGINIA582024
AutaugavilleALABAMA562025
TibbsTENNESSEE562025
TrentonTENNESSEE562023
ShilohKENTUCKY552025
LovelacevileKENTUCKY542025
Sprott-Cahaba RivALABAMA532014
SweetlipsTENNESSEE532023
Gainestown FerryALABAMA522015
BrownsvilleTENNESSEE522025
Olive BranchMISSISSIPPI512001
GastonburgALABAMA492024
WhitevilleTENNESSEE482025
HoltALABAMA472025
Water ValleyMISSISSIPPI472018

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