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

Carolina Wren In Piedmont

All regionsPiedmontForest birds

Carolina Wren in Piedmont has surged: up 416% on the route-weighted index since 1968.

+416%Since 1968
170Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Carolina Wren has surged in Piedmont: up 416% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Carolina Wren in Piedmont is projected to stay roughly flat through 2029, near 30 (95% range 25–36). A 5-year backtest shows a typical error of ±9.7%, with 100% of held-out values landing inside the 95% band.

-1%Change by 2029
30Projected 2029 index
25–3695% range
±9.7%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
2025292334
2026292435
2027302435
2028302436
2029302536

Routes In Piedmont

Routes recording Carolina Wren in Piedmont.
EarltonMARYLAND962024
Sunny SideGEORGIA862019
WilgroveNORTH-CAROLINA712024
RutledgeGEORGIA682024
IjamsvilleMARYLAND622024
FinchleyVIRGINIA622021
OlneyMARYLAND612024
WheatonMARYLAND602024
TrymeVIRGINIA542024
WhitesburgGEORGIA522024
CampobelloSOUTH-CAROLINA522024
BrodnaxVIRGINIA512024
Liberty City 2ALABAMA492024
MaxeysGEORGIA492024
GrovetownGEORGIA482021
MadonnaMARYLAND472022
ClimaxNORTH-CAROLINA472024
FairviewNORTH-CAROLINA462024
ProsperitySOUTH-CAROLINA452024
EmmitsburgMARYLAND442024
CallNORTH-CAROLINA422024
DurhamNORTH-CAROLINA422024
CandlerGEORGIA412024
JordanNORTH-CAROLINA412024
OakboroNORTH-CAROLINA412024

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