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

Purple Martin In Piedmont

All regionsPiedmontAerial insectivores

Purple Martin in Piedmont has declined: down 36% on the route-weighted index since 1968.

-36%Since 1968
167Routes In Region
58Years

Notable Signals

No notable trend signals for Purple Martin in Piedmont. See the full index history below.

Forecast

If the recent trend holds, Purple Martin in Piedmont is projected to rise about 14% by 2029 — from 5.3 in 2024 to a central estimate of 6.1 (95% range 0.67–11). A 5-year backtest shows a typical error of ±55.5%, with 100% of held-out values landing inside the 95% band.

+14%Change by 2029
6.1Projected 2029 index
0.67–1195% range
±55.5%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
20256.20.7612
20266.10.7412
20276.10.7211
20286.10.6911
20296.10.6711

Routes In Piedmont

Routes recording Purple Martin in Piedmont.
BlacksburgSOUTH-CAROLINA3122013
MetasvilleGEORGIA652000
Little MtnSOUTH-CAROLINA581988
ProsperitySOUTH-CAROLINA532024
WedoweeALABAMA352023
RutledgeGEORGIA332024
LeolaPENNSYLVANIA332024
AthensGEORGIA312024
Barton CreekSOUTH-CAROLINA292022
Nixburg 2ALABAMA272024
JordanNORTH-CAROLINA242022
Liberty City 2ALABAMA222024
HiramGEORGIA222018
CandlerGEORGIA202024
MadonnaMARYLAND192022
IjamsvilleMARYLAND182024
TaylorstownVIRGINIA182010
OakboroNORTH-CAROLINA172024
ClimaxNORTH-CAROLINA162024
PendletonSOUTH-CAROLINA161976
FairplayGEORGIA151990
Rock BranchGEORGIA152024
WacoNORTH-CAROLINA152019
FlayNORTH-CAROLINA152024
Salem XrdSOUTH-CAROLINA152017

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