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

Willow Flycatcher Population Trend in Utah

All statesAerial insectivores

Willow Flycatcher in Utah has edged down: down 22% on the route-weighted index since 1974.

-22%Since 1974
38Routes In State
43Years

Notable Willow Flycatcher Trends in Utah

No notable trend signals for Willow Flycatcher in Utah. See the full index history below.

Willow Flycatcher Population Forecast in Utah

If the recent trend holds, Willow Flycatcher in Utah is projected to fall about 37% by 2029 — from 0.15 in 2024 to a central estimate of 0.10 (95% range 0.00–0.32). A 5-year backtest shows a typical error of ±61.8%, with 80% of held-out values landing inside the 95% band.

-37%Change by 2029
0.10Projected 2029 index
0.00–0.3295% range
±61.8%Backtest error
19702029
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
20250.110.000.34
20260.110.000.33
20270.100.000.33
20280.100.000.33
20290.100.000.32

Willow Flycatcher Survey Routes in Utah

Routes recording Willow Flycatcher in Utah.
Ant Flat-Ogden Can1120232005
Navajo Lake419741974
Jensen420242008
Promontory320052005
Timpie Spg320021978
Lost Cr. Res220081995
Woodruff220232005
Soapstone220191992
Skyline Driv220071986
Hanna220242000
Green River220082008
Gold Hill220192019
Blanding219921992
Moon Lake 2120152014
Beck119741971
Altonah120071978
Neponset Res120002000
Logan Canyon120062006
Goshen120101970
Bryce Canyon120052005
Beaver119851985
Hanksville120112011
Boulder120001988
Aneth120242024
Lynn120231986

Willow Flycatcher Population Trend in Other States

alaskaarizonaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatennesseetexasvermontvirginiawashingtonwest-virginiawisconsinwyoming

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