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

Common Gallinule In Mississippi Alluvial Valley

All regionsMississippi Alluvial ValleyWetland birds

Common Gallinule in Mississippi Alluvial Valley has surged: up 283% on the route-weighted index since 1985.

+283%Since 1985
15Routes In Region
31Years

Notable Signals

long arc increasecomputed index

Common Gallinule has surged in Mississippi Alluvial Valley: up 283% on the route-weighted index since 1985.

Forecast

If the recent trend holds, Common Gallinule in Mississippi Alluvial Valley is projected to rise about 251% by 2029 — from 0.06 in 2024 to a central estimate of 0.21 (95% range 0.03–0.40). A 5-year backtest shows a typical error of ±74.3%, with 80% of held-out values landing inside the 95% band.

+251%Change by 2029
0.21Projected 2029 index
0.03–0.4095% range
±74.3%Backtest error
19792029
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
20250.200.010.38
20260.200.020.39
20270.210.020.39
20280.210.020.40
20290.210.030.40

Routes In Mississippi Alluvial Valley

Routes recording Common Gallinule in Mississippi Alluvial Valley.
Port AllenLOUISIANA82013
South BendARKANSAS62023
Eagle LakeMISSISSIPPI52023
MayflowerLOUISIANA22022
RamahLOUISIANA22023
CarlisleLOUISIANA11988
KeystoneLOUISIANA12009
ShawLOUISIANA12024
GibsonLOUISIANA12001
BelairLOUISIANA12024
Morgan CityLOUISIANA12018
AtchafalayaLOUISIANA12009
Baton RougeLOUISIANA12021
IsolaMISSISSIPPI11996
PawpawTENNESSEE11985

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