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

Common Yellowthroat Population Trend in South Dakota

All statesForest birds

Common Yellowthroat in South Dakota has held roughly steady: up 7% on the route-weighted index since 1969.

+7%Since 1969TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
61Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Common Yellowthroat Trends in South DakotaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Common Yellowthroat in South Dakota. See the full index history below.

Common Yellowthroat Population Forecast in South Dakota

If the recent trend holds, Common Yellowthroat in South Dakota is projected to stay roughly flat through 2029, near 7.5 (95% range 4.7–10). A 5-year backtest shows a typical error of ±19.3%, with 100% of held-out values landing inside the 95% band.

-3%Change by 2029TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
7.5Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
4.7–1095% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±19.3%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Common Yellowthroat in South Dakota is projected to stay roughly flat through 2029, near 7.5 (95% range 4.7–10). A 5-year backtest shows a typical error of ±19.3%, with 100% of held-out values landing inside the 95% band.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 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20257.54.710
20267.54.710
20277.54.710
20287.54.710
20297.54.710

Common Yellowthroat Survey Routes in South Dakota

Routes recording Common Yellowthroat in South Dakota.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Lane3819991967
Wilmot3020241967
Howard2920241970
Veblen2620231967
Turton2620241985
Broadland2420141967
Lennox2120241967
Promise2120151971
Volga2020241967
Roswell1920141967
Forbes1820241977
Eagle Butte1820151990
Raymond1620211967
Conde1519841967
Isabel1420151990
Long Lake1220191967
Rochford1220181992
Tripp1120241967
Britton1120231967
Lane 21120142000
Lacreek920231991
Hill City920131992
White Lake820111967
Chamberlain820111967
Gettysburg820231969

Common Yellowthroat Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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