Species · BCR 27 · BBS 2025 Release · 1966–2024

Worm-eating Warbler In Southeastern Coastal Plain

Worm-eating Warbler in Southeastern Coastal Plain has surged: up 775% on the route-weighted index since 1969.

+775%Since 1969
115Routes In Region
57Years

Notable Signals

long arc increasecomputed index

Worm-eating Warbler has surged in Southeastern Coastal Plain: up 775% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Worm-eating Warbler in Southeastern Coastal Plain is projected to rise about 111% by 2029 — from 0.16 in 2024 to a central estimate of 0.34 (95% range 0.16–0.52). A 5-year backtest shows a typical error of ±92.3%, with 20% of held-out values landing inside the 95% band.

+111%Change by 2029
0.34Projected 2029 index
0.160.5295% range
±92.3%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
20250.320.140.50
20260.320.150.50
20270.330.150.51
20280.330.150.51
20290.340.160.52

Routes In Southeastern Coastal Plain

Routes recording Worm-eating Warbler in Southeastern Coastal Plain.
MashoesNORTH-CAROLINA81982
HoltALABAMA42024
Trace SouthMISSISSIPPI42019
Holly SpringsMISSISSIPPI42023
Grenada LakeMISSISSIPPI42019
Vicksburg NpMISSISSIPPI42016
MerrimonNORTH-CAROLINA42019
BeatriceALABAMA32005
NorwoodLOUISIANA32024
Trace CentralMISSISSIPPI32022
Trace HindsMISSISSIPPI32021
NewportNORTH-CAROLINA32022
Dismal SwampVIRGINIA32016
LindenALABAMA22023
MillryALABAMA21992
EpesALABAMA22024
EscatawpaALABAMA22016
Grove HillALABAMA22023
VinaALABAMA22023
GastonburgALABAMA22002
ColumbiaMISSISSIPPI21990
CorinthMISSISSIPPI22024
Leaf RiverMISSISSIPPI22008
EmbryMISSISSIPPI22024
Trace MadisonMISSISSIPPI22019

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