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

Common Yellowthroat Population Trend in Wyoming

All statesForest birds

Common Yellowthroat in Wyoming has surged: up 93% on the route-weighted index since 1970.

+93%Since 1970TrendPercent 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 →
78Routes 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 →
56YearsYears 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 WyomingNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Common Yellowthroat has surged in Wyoming: up 93% on the route-weighted index since 1970.

Common Yellowthroat Population Forecast in Wyoming

If the recent trend holds, Common Yellowthroat in Wyoming is projected to stay roughly flat through 2029, near 1.2 (95% range 0.42–1.9). A 5-year backtest shows a typical error of ±25.2%, with 100% of held-out values landing inside the 95% band.

+0%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 →
1.2Projected 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 →
0.42–1.995% 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 →
±25.2%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 Wyoming is projected to stay roughly flat through 2029, near 1.2 (95% range 0.42–1.9). A 5-year backtest shows a typical error of ±25.2%, with 100% of held-out values landing inside the 95% band.19682029
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 →
20251.10.401.9
20261.10.411.9
20271.10.411.9
20281.20.421.9
20291.20.421.9

Common Yellowthroat Survey Routes in Wyoming

Routes recording Common Yellowthroat in Wyoming.
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 →
Dayton1420241980
Moskee920011980
Clark820241990
Seedskadee 2720242024
Lingle620241980
Sundance520241975
Mammoth520241982
Fletcher Pk520161979
Ryan Park520122012
Midvale420241987
Yoder420241986
Tensleep420241995
Mayoworth420241983
Cheyenne420242001
Carter 2420242018
Otto320241970
Lysite320001998
Green River319841977
Sybille Cyn320242000
Colter Bay 2320242019
Moskee 3320242022
Ne Entrance220211982
Glenrock219761973
Hunter Peak220241982
Bald Mtn220222022

Common Yellowthroat Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsin

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