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

Red-winged Blackbird In Piedmont

All regionsPiedmontGeneralists

Red-winged Blackbird in Piedmont has collapsed: down 80% on the route-weighted index since 1968.

-80%Since 1968
167Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Red-winged Blackbird has collapsed in Piedmont: down 80% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Red-winged Blackbird in Piedmont is projected to fall about 100% by 2029 — from 11 in 2024 to a central estimate of 0.00 (95% range 0.00–14). A 5-year backtest shows a typical error of ±118.5%, with 60% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–1495% range
±118.5%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
20250.000.0014
20260.000.0014
20270.000.0014
20280.000.0014
20290.000.0014

Routes In Piedmont

Routes recording Red-winged Blackbird in Piedmont.
EmmitsburgMARYLAND962024
Croton 2NEW-JERSEY822024
AspersPENNSYLVANIA781989
West GrovePENNSYLVANIA731996
Bachman MillMARYLAND672024
EarltonMARYLAND582024
BendersvillePENNSYLVANIA512024
PendletonSOUTH-CAROLINA501976
OlneyMARYLAND482024
CollegevillePENNSYLVANIA482024
GatchelvillePENNSYLVANIA481990
Pleasant ValMARYLAND452024
PottersvilleNEW-JERSEY392024
LincolntonGEORGIA342017
IjamsvilleMARYLAND342024
MadonnaMARYLAND332022
LabottPENNSYLVANIA331983
RutledgeGEORGIA322024
PottstownPENNSYLVANIA311987
Doe RunPENNSYLVANIA312024
TaylorstownVIRGINIA312010
Bald FriarMARYLAND291996
CrotonNEW-JERSEY292007
LeolaPENNSYLVANIA272024
GilletteNEW-JERSEY262024

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