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Species · Idaho · BBS 2025 Release · 1966–2024

Dusky Flycatcher Population Trend in Idaho

All statesAerial insectivores

Dusky Flycatcher in Idaho has risen sharply: up 62% on the route-weighted index since 1973.

+62%Since 1973
46Routes In State
53Years

Notable Dusky Flycatcher Trends in Idaho

long arc increasecomputed index

Dusky Flycatcher has risen sharply in Idaho: up 62% on the route-weighted index since 1973.

Dusky Flycatcher Population Forecast in Idaho

If the recent trend holds, Dusky Flycatcher in Idaho is projected to stay roughly flat through 2029, near 2.8 (95% range 1.1–4.4). A 5-year backtest shows a typical error of ±24.2%, with 80% of held-out values landing inside the 95% band.

-6%Change by 2029
2.8Projected 2029 index
1.1–4.495% range
±24.2%Backtest error
19712029
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
20252.61.04.3
20262.71.04.3
20272.71.14.3
20282.71.14.4
20292.81.14.4

Dusky Flycatcher Survey Routes in Idaho

Routes recording Dusky Flycatcher in Idaho.
Cascade2919841983
Nezperce1920121992
Cape Horn1620241989
Featherville1620241989
Golden1420161987
Centerville1220191982
Sawtooth Cty1020141988
Triangle920211990
Sawtooth City 2920242015
Challis720241980
Squirrel720241971
Magic Mtn720241987
Avery620161979
Rochat Divde620232002
Salmon River420211988
Grangeville320101987
Coolin320231986
Pierce320071990
Silver City320241989
Nezperce Nf319991992
Naples220241972
Mivoden220221978
Gifford220171986
Leadore220241981
N Fork Cda R220191993

Dusky Flycatcher Population Trend in Other States

arizonacaliforniacoloradomontananebraskanevadanew-mexicooregonsouth-dakotautahwashingtonwyoming

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