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Species · Kentucky · BBS 2025 Release · 1966–2024

Blue-gray Gnatcatcher Population Trend in Kentucky

All statesForest birds

Blue-gray Gnatcatcher in Kentucky has risen sharply: up 58% on the route-weighted index since 1968.

+58%Since 1968
64Routes In State
58Years

Notable Blue-gray Gnatcatcher Trends in Kentucky

long arc increasecomputed index

Blue-gray Gnatcatcher has risen sharply in Kentucky: up 58% on the route-weighted index since 1968.

Blue-gray Gnatcatcher Population Forecast in Kentucky

If the recent trend holds, Blue-gray Gnatcatcher in Kentucky is projected to rise about 97% by 2029 — from 4.4 in 2024 to a central estimate of 8.7 (95% range 6.0–11). A 5-year backtest shows a typical error of ±44.4%, with 60% of held-out values landing inside the 95% band.

+97%Change by 2029
8.7Projected 2029 index
6.0–1195% range
±44.4%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
20258.35.611
20268.45.711
20278.55.811
20288.65.911
20298.76.011

Blue-gray Gnatcatcher Survey Routes in Kentucky

Routes recording Blue-gray Gnatcatcher in Kentucky.
Cumberlnd Gp8720181966
Levee 24120192007
Staffordsvil2619971996
Mammoth Cave2120141995
Paintsville1719951979
Beattyville 21720242006
Riverqueen1420242007
Johnsonville1420211966
Joy1420231966
Bays Fork1420191999
Campton1420211979
Lebanon Junction1320242000
Kehoe1219921966
Morganfield1020242022
Mammoth Cave North920132009
Hodgenville 2920232008
Bardwell820031967
Pine Ridge819781966
Merrimac820241967
Carter820241976
East Union720221966
Apex720242005
Hegira620241988
Monticello620221969
Million619861966

Blue-gray Gnatcatcher Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaslouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming

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