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

Ash-throated Flycatcher Population Trend in Utah

All statesAerial insectivores

Ash-throated Flycatcher in Utah has surged: up 780% on the route-weighted index since 1973.

+780%Since 1973
75Routes In State
49Years

Notable Ash-throated Flycatcher Trends in Utah

long arc increasecomputed index

Ash-throated Flycatcher has surged in Utah: up 780% on the route-weighted index since 1973.

Ash-throated Flycatcher Population Forecast in Utah

If the recent trend holds, Ash-throated Flycatcher in Utah is projected to stay roughly flat through 2029, near 4.5 (95% range 3.3–5.6). A 5-year backtest shows a typical error of ±12.5%, with 100% of held-out values landing inside the 95% band.

-1%Change by 2029
4.5Projected 2029 index
3.3–5.695% range
±12.5%Backtest error
19692029
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
20254.23.05.3
20264.33.15.4
20274.33.25.5
20284.43.35.5
20294.53.35.6

Ash-throated Flycatcher Survey Routes in Utah

Routes recording Ash-throated Flycatcher in Utah.
Shivwitz3820241993
Hatch2320241994
Escalante1820241998
Blanding1820241987
Aneth1520241991
Moab1420241986
Canyonlands1420061991
Cleveland1420241994
Lake Powell1220091993
Monticello1220242000
Bullfrog Bay1020172002
Moquith Mtn1020241988
Boulder920211974
Alton 2920242021
Notom920241989
Glen Canyon920241991
Goose Creek Mtn.820232002
Canyon Rims820241998
Beryl820241988
Wellington720021997
Wah Wah720041989
Canyonlands720241987
Cane Spr Des720121993
La Sal619931993
Westwater620241997

Ash-throated Flycatcher Population Trend in Other States

arizonacaliforniacoloradoidahokansasnevadanew-mexicooklahomaoregontexaswashingtonwyoming

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