BirdAnalyst
Species · Maryland · BBS 2025 Release · 1966–2024

Great Crested Flycatcher Population Trend in Maryland

All statesAerial insectivores

Great Crested Flycatcher in Maryland has surged: up 101% on the route-weighted index since 1968.

+101%Since 1968
76Routes In State
58Years

Notable Great Crested Flycatcher Trends in Maryland

long arc increasecomputed index

Great Crested Flycatcher has surged in Maryland: up 101% on the route-weighted index since 1968.

Great Crested Flycatcher Population Forecast in Maryland

If the recent trend holds, Great Crested Flycatcher in Maryland is projected to stay roughly flat through 2029, near 8.7 (95% range 6.6–11). A 5-year backtest shows a typical error of ±9.2%, with 80% of held-out values landing inside the 95% band.

+3%Change by 2029
8.7Projected 2029 index
6.6–1195% range
±9.2%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
20258.36.310
20268.46.410
20278.56.411
20288.66.511
20298.76.611

Great Crested Flycatcher Survey Routes in Maryland

Routes recording Great Crested Flycatcher in Maryland.
Honga5120241966
Madison4520241966
Cokesbury2420241966
Williamsport1820241966
Furnace Town1520242015
Wheaton1420241990
Emmitsburg1320241966
Tall Timbers1320141966
Easton1220211966
Fruitland1219981966
Walnut1220241999
Harmony1120171966
Matthews1020241966
Berlin1020241980
Indiantown920141977
Island Creek920241991
Piney Neck820241966
Vienna820241966
Newark820241966
Snow Hill819761966
St. George'S Island820172015
Ijamsville820241986
Madonna820222009
Davidsnville820241982
Oldtown720241970

Great Crested Flycatcher Population Trend in Other States

alabamaarkansascoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin

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