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

Black-and-white Warbler In Piedmont

All regionsPiedmontForest birds

Black-and-white Warbler in Piedmont has surged: up 581% on the route-weighted index since 1968.

+581%Since 1968
108Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Black-and-white Warbler has surged in Piedmont: up 581% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Black-and-white Warbler in Piedmont is projected to fall about 17% by 2029 — from 0.96 in 2024 to a central estimate of 0.79 (95% range 0.56–1.0). A 5-year backtest shows a typical error of ±27.7%, with 20% of held-out values landing inside the 95% band.

-17%Change by 2029
0.79Projected 2029 index
0.56–1.095% range
±27.7%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
20250.740.510.97
20260.750.530.98
20270.760.540.99
20280.780.551.0
20290.790.561.0

Routes In Piedmont

Routes recording Black-and-white Warbler in Piedmont.
WashingtonGEORGIA72024
SharonGEORGIA72022
WhitmireSOUTH-CAROLINA62024
MannboroVIRGINIA62024
JulietteGEORGIA52024
Sharon 2GEORGIA52024
Liberty City 2ALABAMA42024
LincolntonGEORGIA42017
Carrs StationGEORGIA42024
YoungsvilleNORTH-CAROLINA42024
GuptonNORTH-CAROLINA42024
RidgewaySOUTH-CAROLINA42019
MillervilleALABAMA32024
MaxeysGEORGIA32024
FairplayGEORGIA31983
RutledgeGEORGIA32024
WhitesburgGEORGIA32024
Curry HillGEORGIA32019
Rock BranchGEORGIA32024
ArcolaNORTH-CAROLINA32024
MonticelloNORTH-CAROLINA32008
Little MtnSOUTH-CAROLINA31983
Carters Brdg 2VIRGINIA32024
Liberty CityALABAMA22011
Nixburg 2ALABAMA22022

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