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

Bell's Vireo In Mississippi Alluvial Valley

All regionsMississippi Alluvial ValleyForest birds

Bell's Vireo in Mississippi Alluvial Valley has fallen sharply: down 60% on the route-weighted index since 1972.

-60%Since 1972
12Routes In Region
25Years

Notable Signals

long arc declinecomputed index

Bell's Vireo has fallen sharply in Mississippi Alluvial Valley: down 60% on the route-weighted index since 1972.

Forecast

If the recent trend holds, Bell's Vireo in Mississippi Alluvial Valley is projected to fall about 83% by 2028 — from 0.06 in 2023 to a central estimate of 0.01 (95% range 0.00–0.11). A 5-year backtest shows a typical error of ±69.4%, with 100% of held-out values landing inside the 95% band.

-83%Change by 2028
0.01Projected 2028 index
0.00–0.1195% range
±69.4%Backtest error
19672028
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
20240.020.000.11
20250.020.000.11
20260.010.000.11
20270.010.000.11
20280.010.000.11

Routes In Mississippi Alluvial Valley

Routes recording Bell's Vireo in Mississippi Alluvial Valley.
BlodgettMISSOURI22023
EudoraARKANSAS11975
HughesARKANSAS11975
West TylerARKANSAS11980
HarrisburgARKANSAS11997
AugustaARKANSAS11980
SaffellARKANSAS12014
MaynardARKANSAS12011
UlmARKANSAS11986
Augusta 2ARKANSAS12010
Crowley'S RidgeARKANSAS12016
Cp GirardeauMISSOURI12016

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