BirdAnalyst
Species · BCR 27 · BBS 2025 Release · 1966–2024

Indigo Bunting In Southeastern Coastal Plain

All regionsSoutheastern Coastal PlainGeneralists

Indigo Bunting in Southeastern Coastal Plain has edged up: up 12% on the route-weighted index since 1968.

+12%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 →
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 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 2029, near 21 (95% range 17–25). A 5-year backtest shows a typical error of ±18.5%, with 60% of held-out values landing inside the 95% band.

+6%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 →
21Projected 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 →
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 →
±18.5%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 2029, near 21 (95% range 17–25). A 5-year backtest shows a typical error of ±18.5%, with 60% of held-out values landing inside the 95% band.19662029
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 →
2025211725
2026211725
2027211725
2028211725
2029211725

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 →
MansfieldTENNESSEE1312024
HumboldtTENNESSEE1102024
EpesALABAMA712024
Big SandyTENNESSEE672024
JacksonNORTH-CAROLINA662017
NewvilleVIRGINIA612024
Rock ChapelALABAMA592024
MoscowTENNESSEE582024
NewsomsVIRGINIA582024
CorinthMISSISSIPPI562024
TrentonTENNESSEE562023
Sprott-Cahaba RivALABAMA532014
SweetlipsTENNESSEE532023
ElamvilleALABAMA522024
Gainestown FerryALABAMA522015
Olive BranchMISSISSIPPI512001
SurryVIRGINIA502024
GastonburgALABAMA492024
HowardALABAMA472024
Water ValleyMISSISSIPPI472018
TibbsTENNESSEE472024
RhemsNORTH-CAROLINA461993
WhitevilleTENNESSEE452024
SilertonTENNESSEE452024
HoltALABAMA442024

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