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

Least Flycatcher Population Trend in South Dakota

All statesAerial insectivores

Least Flycatcher in South Dakota has surged: up 157% on the route-weighted index since 1969.

+157%Since 1969
32Routes In State
45Years

Notable Least Flycatcher Trends in South Dakota

long arc increasecomputed index

Least Flycatcher has surged in South Dakota: up 157% on the route-weighted index since 1969.

Least Flycatcher Population Forecast in South Dakota

If the recent trend holds, Least Flycatcher in South Dakota is projected to rise about 17% by 2029 — from 0.32 in 2024 to a central estimate of 0.37 (95% range 0.16–0.59). A 5-year backtest shows a typical error of ±27.7%, with 80% of held-out values landing inside the 95% band.

+17%Change by 2029
0.37Projected 2029 index
0.16–0.5995% range
±27.7%Backtest error
19672029
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
20250.350.130.56
20260.350.140.57
20270.360.140.57
20280.370.150.58
20290.370.160.59

Least Flycatcher Survey Routes in South Dakota

Routes recording Least Flycatcher in South Dakota.
Promise720121999
Wilmot520241997
Britton520231983
Veblen420231969
Conde319691967
Long Lake320191972
Rosebud220092009
Broadland220122002
Custer220111999
Eagle Butte220151990
Silver City220022001
Lennox120051979
Geddes120162014
Chamberlain120052005
Cottonwood119961996
Volga120062006
Raymond120171967
Roswell120102010
Forbes120241977
Gettysburg120192019
Roubaix Lk119761976
Gorman120091980
Maurine120022002
Reva120241987
Lodgepole120141990

Least Flycatcher Population Trend in Other States

alaskaarkansascaliforniacoloradoconnecticutgeorgiaidahoillinoisindianaiowakentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-carolinatennesseeutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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