BirdAnalyst
Species · BCR 29 · BBS 2025 Release · 1966–2024

Louisiana Waterthrush In Piedmont

All regionsPiedmontForest birds

Louisiana Waterthrush in Piedmont has surged: up 206% on the route-weighted index since 1968.

+206%Since 1968
120Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Louisiana Waterthrush has surged in Piedmont: up 206% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Louisiana Waterthrush in Piedmont is projected to fall about 12% by 2029 — from 0.48 in 2024 to a central estimate of 0.42 (95% range 0.29–0.54). A 5-year backtest shows a typical error of ±6.9%, with 100% of held-out values landing inside the 95% band.

-12%Change by 2029
0.42Projected 2029 index
0.29–0.5495% range
±6.9%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
20250.400.280.53
20260.410.280.53
20270.410.280.54
20280.410.290.54
20290.420.290.54

Routes In Piedmont

Routes recording Louisiana Waterthrush in Piedmont.
EarltonMARYLAND42024
MillervilleALABAMA32024
RutledgeGEORGIA32024
WashingtonGEORGIA32024
IjamsvilleMARYLAND32024
AmherstVIRGINIA32024
Liberty City 2ALABAMA22024
Nixburg 2ALABAMA22023
MaxeysGEORGIA22024
GrovetownGEORGIA22013
JulietteGEORGIA21994
Carrs StationGEORGIA22021
Stoney Point 2GEORGIA22021
Silver SpgMARYLAND21988
WheatonMARYLAND22024
YoungsvilleNORTH-CAROLINA22024
DurhamNORTH-CAROLINA22024
BullockNORTH-CAROLINA22023
Mount AiryNORTH-CAROLINA22018
PartlowVIRGINIA22000
ShipmanVIRGINIA22024
ElamsvilleVIRGINIA22016
BrodnaxVIRGINIA22022
AppomattoxVIRGINIA22016
Pw Forest PkVIRGINIA22009

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