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

Northern Rough-winged Swallow In Appalachian Mountains

All regionsAppalachian MountainsAerial insectivores

Northern Rough-winged Swallow in Appalachian Mountains has increased: up 43% on the route-weighted index since 1968.

+43%Since 1968
362Routes In Region
58Years

Notable Signals

No notable trend signals for Northern Rough-winged Swallow in Appalachian Mountains. See the full index history below.

Forecast

If the recent trend holds, Northern Rough-winged Swallow in Appalachian Mountains is projected to rise about 29% by 2029 — from 2.2 in 2024 to a central estimate of 2.8 (95% range 0.00–8.9). A 5-year backtest shows a typical error of ±90.8%, with 100% of held-out values landing inside the 95% band.

+29%Change by 2029
2.8Projected 2029 index
0.00–8.995% range
±90.8%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
20252.70.008.8
20262.70.008.9
20272.70.008.9
20282.80.008.9
20292.80.008.9

Routes In Appalachian Mountains

Routes recording Northern Rough-winged Swallow in Appalachian Mountains.
Pine GroveALABAMA682024
Smyer LakeALABAMA602024
PhelpsKENTUCKY381997
Pleasant HillGEORGIA302024
LakeviewALABAMA172024
DrummondALABAMA162024
CentervilleNEW-YORK162013
CoshoctonOHIO161990
HanoverWEST-VIRGINIA152024
CartersvilleGEORGIA142024
RiversideALABAMA132013
DrydenVIRGINIA132005
OmegaOHIO122024
BeaverPENNSYLVANIA122024
Mohican S.F.OHIO112024
OakmanGEORGIA102022
Jonas RidgeNORTH-CAROLINA101971
McfarlandTENNESSEE101993
Pippa PassesKENTUCKY91997
StoneybreakPENNSYLVANIA92022
StollingsWEST-VIRGINIA92021
HubbardstownWEST-VIRGINIA92023
WilliamsportMARYLAND82024
BetulaPENNSYLVANIA82022
PortersvillePENNSYLVANIA81988

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