BirdAnalyst
Species · BCR 26 · BBS 2025 Release · 1966–2024

Dickcissel In Mississippi Alluvial Valley

All regionsMississippi Alluvial ValleyGrassland birds

Dickcissel in Mississippi Alluvial Valley has edged down: down 13% on the route-weighted index since 1968.

-13%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 →
61Routes 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 Dickcissel in Mississippi Alluvial Valley. See the full index history below.

Dickcissel In Mississippi Alluvial Valley Population Forecast

If the recent trend holds, Dickcissel in Mississippi Alluvial Valley is projected to rise about 14% by 2029 — from 23 in 2024 to a central estimate of 26 (95% range 12–40). A 5-year backtest shows a typical error of ±17.7%, with 100% of held-out values landing inside the 95% band.

+14%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 →
26Projected 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 →
12–4095% 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 →
±17.7%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, Dickcissel in Mississippi Alluvial Valley is projected to rise about 14% by 2029 — from 23 in 2024 to a central estimate of 26 (95% range 12–40). A 5-year backtest shows a typical error of ±17.7%, with 100% 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 →
2025271341
2026261240
2027261240
2028261240
2029261240

Routes In Mississippi Alluvial Valley

Routes recording Dickcissel 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 →
AugustaARKANSAS1242001
HaytiMISSOURI1222021
DellARKANSAS1162024
Augusta 2ARKANSAS1052016
DeventerMISSOURI962024
TippoMISSISSIPPI812024
LafeARKANSAS782022
WilsonARKANSAS772024
DundeeMISSISSIPPI742022
HughesARKANSAS652023
MaynardARKANSAS642024
HarrisburgARKANSAS632019
TransylvaniaLOUISIANA632022
Dahomey NwrMISSISSIPPI612024
KelsoARKANSAS602016
IsolaMISSISSIPPI582022
PawpawTENNESSEE582012
West TylerARKANSAS571984
UlmARKANSAS552024
EnglandARKANSAS532024
RayvilleLOUISIANA452008
WhittonARKANSAS431991
Hickory RidgeARKANSAS312022
GillettARKANSAS312024
WintervilleMISSISSIPPI282011

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