BirdAnalyst
Species · BCR 26 · BBS 2026 Release · 1966–2025

Bald Eagle In Mississippi Alluvial Valley

All regionsMississippi Alluvial ValleyBirds of prey

Bald Eagle in Mississippi Alluvial Valley has surged: up 481% on the route-weighted index since 2000.

+481%Since 2000TrendPercent 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 →
29Routes 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 →
25YearsYears 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 Bald Eagle in Mississippi Alluvial Valley. See the full index history below.

Bald Eagle In Mississippi Alluvial Valley Population Forecast

If the recent trend holds, Bald Eagle in Mississippi Alluvial Valley is projected to rise about 71% by 2030 — from 0.14 in 2025 to a central estimate of 0.24 (95% range 0.11–0.37). A 5-year backtest shows a typical error of ±29.7%, with 100% of held-out values landing inside the 95% band.

+71%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 →
0.24Projected 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 →
0.11–0.3795% 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 →
±29.7%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, Bald Eagle in Mississippi Alluvial Valley is projected to rise about 71% by 2030 — from 0.14 in 2025 to a central estimate of 0.24 (95% range 0.11–0.37). A 5-year backtest shows a typical error of ±29.7%, with 100% of held-out values landing inside the 95% band.19942030
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 →
20260.210.080.34
20270.220.090.35
20280.230.100.35
20290.230.100.36
20300.240.110.37

Routes In Mississippi Alluvial Valley

Routes recording Bald Eagle in Mississippi Alluvial Valley.
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 →
BerwickLOUISIANA82013
MaynardARKANSAS22023
DellARKANSAS22024
EnglandARKANSAS22021
GillettARKANSAS22014
UlmARKANSAS22013
WilsonARKANSAS22024
RamahLOUISIANA22014
IsolaMISSISSIPPI22022
Tchula 3MISSISSIPPI22025
EudoraARKANSAS12009
HughesARKANSAS12022
South BendARKANSAS12025
HarrisburgARKANSAS11998
LafeARKANSAS12017
Bardwell 2KENTUCKY12022
TransylvaniaLOUISIANA12003
BelairLOUISIANA12004
Morgan CityLOUISIANA12011
River RoadLOUISIANA12023
DundeeMISSISSIPPI12022
Eagle LakeMISSISSIPPI12023
TippoMISSISSIPPI12022
Panther Swamp NwrMISSISSIPPI12018
DeventerMISSOURI12021

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