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

Summer Tanager In Mississippi Alluvial Valley

All regionsMississippi Alluvial ValleyGeneralists

Summer Tanager in Mississippi Alluvial Valley has surged: up 86% on the route-weighted index since 1968.

+86%Since 1968
66Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Summer Tanager has surged in Mississippi Alluvial Valley: up 85% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Summer Tanager in Mississippi Alluvial Valley is projected to stay roughly flat through 2029, near 4.4 (95% range 3.1–5.7). A 5-year backtest shows a typical error of ±3.3%, with 100% of held-out values landing inside the 95% band.

+3%Change by 2029
4.4Projected 2029 index
3.1–5.795% range
±3.3%Backtest error
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 index95% low95% high
20254.22.95.5
20264.22.95.5
20274.33.05.6
20284.33.05.6
20294.43.15.7

Routes In Mississippi Alluvial Valley

Routes recording Summer Tanager in Mississippi Alluvial Valley.
Delta N.F.MISSISSIPPI302021
Crowley'S RidgeARKANSAS282024
Tensas NwrLOUISIANA152024
FrogmoreLOUISIANA122024
AtchafalayaLOUISIANA122024
Bardwell 2KENTUCKY82024
ShawLOUISIANA82024
South BendARKANSAS72023
CommerceMISSISSIPPI71993
Eagle LakeMISSISSIPPI72024
RamahLOUISIANA62024
Rayville 2LOUISIANA62024
Tchula 2MISSISSIPPI61994
SaffellARKANSAS52019
UlmARKANSAS52024
BardwellKENTUCKY52003
GonzalesLOUISIANA52019
ConcordLOUISIANA52019
TallahatchieMISSISSIPPI52024
Panther Swamp NwrMISSISSIPPI52018
Dahomey NwrMISSISSIPPI52024
EudoraARKANSAS42024
HughesARKANSAS42023
EnglandARKANSAS42024
Augusta 2ARKANSAS42016

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