BirdAnalyst
Species · South Dakota · BBS 2025 Release · 1966–2024

Dusky Flycatcher Population Trend in South Dakota

All statesAerial insectivores

Dusky Flycatcher in South Dakota has declined: down 34% on the route-weighted index since 1993.

-34%Since 1993
13Routes In State
33Years

Notable Dusky Flycatcher Trends in South Dakota

No notable trend signals for Dusky Flycatcher in South Dakota. See the full index history below.

Dusky Flycatcher Population Forecast in South Dakota

If the recent trend holds, Dusky Flycatcher in South Dakota is projected to rise about 48% by 2029 — from 0.55 in 2024 to a central estimate of 0.81 (95% range 0.00–2.0). A 5-year backtest shows a typical error of ±202.2%, with 100% of held-out values landing inside the 95% band.

+48%Change by 2029
0.81Projected 2029 index
0.00–2.095% range
±202.2%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
20250.880.002.1
20260.860.002.1
20270.840.002.1
20280.820.002.0
20290.810.002.0

Dusky Flycatcher Survey Routes in South Dakota

Routes recording Dusky Flycatcher in South Dakota.
Rochford1920181994
Elk Mountain1820011992
Hill City1520131992
Norbeck1220011992
Hazelrodt620241992
Black Fox520171992
Long Draw520241992
Lightning Cr420221999
Pleasant Val220231992
Englewood220211992
Wind Cave Np220231999
Custer120241971
Silver City120122012

Dusky Flycatcher Population Trend in Other States

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