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

Blackburnian Warbler In Appalachian Mountains

All regionsAppalachian MountainsForest birds

Blackburnian Warbler in Appalachian Mountains has surged: up 586% on the route-weighted index since 1968.

+586%Since 1968
173Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Blackburnian Warbler has surged in Appalachian Mountains: up 586% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Blackburnian Warbler in Appalachian Mountains is projected to stay roughly flat through 2029, near 1.2 (95% range 1.00–1.4). A 5-year backtest shows a typical error of ±9.9%, with 80% of held-out values landing inside the 95% band.

+6%Change by 2029
1.2Projected 2029 index
1.00–1.495% range
±9.9%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
20251.10.931.4
20261.20.941.4
20271.20.961.4
20281.20.981.4
20291.21.001.4

Routes In Appalachian Mountains

Routes recording Blackburnian Warbler in Appalachian Mountains.
BusickNORTH-CAROLINA251996
EldredPENNSYLVANIA212022
Glade Run 2WEST-VIRGINIA162024
Roulette 2PENNSYLVANIA152024
AnsoniaPENNSYLVANIA152024
RidgwayPENNSYLVANIA122018
McdonoughNEW-YORK112017
Whig HillPENNSYLVANIA102024
OdinPENNSYLVANIA102024
CattaraugusNEW-YORK92019
RasselasPENNSYLVANIA92022
DuboistownPENNSYLVANIA92024
LoguePENNSYLVANIA82023
Broad Mtn.PENNSYLVANIA82024
Glade RunWEST-VIRGINIA82002
BemisWEST-VIRGINIA82024
OteenNORTH-CAROLINA72023
Marsh HillPENNSYLVANIA72024
S Berne 2NEW-YORK62024
French Broad RiverNORTH-CAROLINA62024
N Pine GrovePENNSYLVANIA62024
Russell CityPENNSYLVANIA62024
PoyntellePENNSYLVANIA62024
Ltl Pine CrPENNSYLVANIA62024
Mountain Lk.VIRGINIA62018

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