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

Ruby-throated Hummingbird In Southeastern Coastal Plain

All regionsSoutheastern Coastal PlainGeneralists

Ruby-throated Hummingbird in Southeastern Coastal Plain has increased: up 28% on the route-weighted index since 1968.

+28%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 →
313Routes 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 Ruby-throated Hummingbird in Southeastern Coastal Plain. See the full index history below.

Ruby-throated Hummingbird In Southeastern Coastal Plain Population Forecast

If the recent trend holds, Ruby-throated Hummingbird in Southeastern Coastal Plain is projected to rise about 81% by 2029 — from 0.49 in 2024 to a central estimate of 0.89 (95% range 0.62–1.2). A 5-year backtest shows a typical error of ±56.8%, with 0% of held-out values landing inside the 95% band.

+81%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 →
0.89Projected 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 →
0.62–1.295% 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 →
±56.8%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, Ruby-throated Hummingbird in Southeastern Coastal Plain is projected to rise about 81% by 2029 — from 0.49 in 2024 to a central estimate of 0.89 (95% range 0.62–1.2). A 5-year backtest shows a typical error of ±56.8%, with 0% 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 →
20250.860.591.1
20260.870.601.1
20270.880.601.1
20280.880.611.2
20290.890.621.2

Routes In Southeastern Coastal Plain

Routes recording Ruby-throated Hummingbird 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 →
DeepstepGEORGIA72023
MattamuskeetNORTH-CAROLINA72021
JacksonNORTH-CAROLINA72017
DolesGEORGIA52017
Okatibbee L.MISSISSIPPI52007
Big SandyTENNESSEE52024
SurryVIRGINIA52021
LindenALABAMA42023
SpragueALABAMA42023
GastonburgALABAMA42024
OusleyGEORGIA42024
Sandy CreekMISSISSIPPI41998
Trace MadisonMISSISSIPPI42019
Oak Ridge VickMISSISSIPPI42018
DortchesNORTH-CAROLINA42024
MansfieldTENNESSEE42024
SilertonTENNESSEE42024
CornlandVIRGINIA42014
WallsboroALABAMA32021
BrundidgeALABAMA32017
EpesALABAMA32024
FairviewALABAMA32022
HoltALABAMA32023
Sprott-Cahaba RivALABAMA32014
SandersonFLORIDA32021

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