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

Summer Tanager In Appalachian Mountains

All regionsAppalachian MountainsGeneralists

Summer Tanager in Appalachian Mountains has fallen sharply: down 70% on the route-weighted index since 1968.

-70%Since 1968
173Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Summer Tanager has fallen sharply in Appalachian Mountains: down 70% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Summer Tanager in Appalachian Mountains is projected to fall about 52% by 2029 — from 0.74 in 2024 to a central estimate of 0.35 (95% range 0.00–0.90). A 5-year backtest shows a typical error of ±39.9%, with 100% of held-out values landing inside the 95% band.

-52%Change by 2029
0.35Projected 2029 index
0.00–0.9095% range
±39.9%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
20250.420.000.96
20260.400.000.95
20270.390.000.93
20280.370.000.92
20290.350.000.90

Routes In Appalachian Mountains

Routes recording Summer Tanager in Appalachian Mountains.
Borden Springs 2ALABAMA212024
Pine RidgeKENTUCKY201978
StevensonALABAMA152024
GreensportALABAMA122024
TalladegaALABAMA112024
ShannonGEORGIA112019
OdenvilleALABAMA92024
ClinchportVIRGINIA91978
Beattyville 2KENTUCKY82024
Pine GroveALABAMA72024
OakmanGEORGIA72024
CartersvilleGEORGIA72024
Sunny EveALABAMA62024
ChildersburgALABAMA61998
LinwoodGEORGIA62023
StaffordsvilKENTUCKY61997
Greasy RidgeOHIO61991
GuntersvilleALABAMA52024
JasperALABAMA51999
OneontaALABAMA52023
MckeeKENTUCKY52024
PaintsvilleKENTUCKY51995
Coal RunOHIO51989
South OliveOHIO52009
Red BankTENNESSEE51978

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