BirdAnalyst
Species · BCR 28 · BBS 2025 Release · 1966–2024

Purple Martin In Appalachian Mountains

All regionsAppalachian MountainsAerial insectivores

Purple Martin in Appalachian Mountains has fallen sharply: down 64% on the route-weighted index since 1968.

-64%Since 1968
272Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Purple Martin has fallen sharply in Appalachian Mountains: down 64% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Purple Martin in Appalachian Mountains is projected to fall about 52% by 2029 — from 2.0 in 2024 to a central estimate of 0.98 (95% range 0.00–2.4). A 5-year backtest shows a typical error of ±43.9%, with 100% of held-out values landing inside the 95% band.

-52%Change by 2029
0.98Projected 2029 index
0.00–2.495% range
±43.9%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
20251.10.002.6
20261.10.002.5
20271.10.002.5
20281.00.002.4
20290.980.002.4

Routes In Appalachian Mountains

Routes recording Purple Martin in Appalachian Mountains.
DresdenOHIO632024
Signal MtnTENNESSEE422024
DearmanvilleALABAMA371980
ClinchportVIRGINIA341978
Bald EaglePENNSYLVANIA302024
Peters MtPENNSYLVANIA271976
SummittALABAMA251981
WallandTENNESSEE251987
WoodvilleALABAMA242024
Amos MillGEORGIA242022
LandisburgPENNSYLVANIA212024
OakmanGEORGIA202024
WilgusOHIO202009
LovellTENNESSEE202019
LakeviewALABAMA182024
JasperALABAMA181999
Davis CrossroadsGEORGIA182021
RiversideALABAMA172013
MckeeKENTUCKY162024
Jonas RidgeNORTH-CAROLINA161971
KeeneOHIO152023
Mt OliveALABAMA142024
MaytownALABAMA142023
East JavaNEW-YORK141973
Borden SprngALABAMA131998

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