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

Blue-gray Gnatcatcher In Appalachian Mountains

Blue-gray Gnatcatcher in Appalachian Mountains has surged: up 78% on the route-weighted index since 1968.

+78%Since 1968
374Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Blue-gray Gnatcatcher has surged in Appalachian Mountains: up 78% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Blue-gray Gnatcatcher in Appalachian Mountains is projected to rise about 27% by 2029 — from 3.3 in 2024 to a central estimate of 4.2 (95% range 2.7–5.7). A 5-year backtest shows a typical error of ±33.9%, with 80% of held-out values landing inside the 95% band.

+27%Change by 2029
4.2Projected 2029 index
2.75.795% range
±33.9%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
20254.12.65.6
20264.12.65.6
20274.22.75.7
20284.22.75.7
20294.22.75.7

Routes In Appalachian Mountains

Routes recording Blue-gray Gnatcatcher in Appalachian Mountains.
Cumberlnd GpKENTUCKY872018
StevensonALABAMA342024
Borden Springs 2ALABAMA302024
Mt OliveALABAMA262024
StaffordsvilKENTUCKY261997
Amos MillGEORGIA252022
DellOHIO252019
Corryton RdTENNESSEE232019
RiversideALABAMA222013
OldtownMARYLAND212024
WelchWEST-VIRGINIA212023
Zaleski S.F.OHIO202024
LinwoodGEORGIA182023
BramwellWEST-VIRGINIA182023
HubbardstownWEST-VIRGINIA182023
Beattyville 2KENTUCKY172024
PaintsvilleKENTUCKY171995
FontanaNORTH-CAROLINA162024
Smokey JctTENNESSEE162022
LovellTENNESSEE162019
WallandTENNESSEE161989
Smyer LakeALABAMA152024
Borden SprngALABAMA151998
WilliamsportMARYLAND152024
CovingtonVIRGINIA152024

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