BirdAnalyst
Species · Wyoming · BBS 2026 Release · 1966–2025

American Robin Population Trend in Wyoming

All statesForest birds

American Robin in Wyoming has held roughly steady: up 6% on the route-weighted index since 1970.

+6%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 →
125Routes 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 American Robin 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 →

No notable trend signals for American Robin in Wyoming. See the full index history below.

American Robin Population Forecast in Wyoming

If the recent trend holds, American Robin in Wyoming is projected to rise about 33% by 2030 — from 15 in 2025 to a central estimate of 20 (95% range 12–28). A 5-year backtest shows a typical error of ±30.6%, with 100% of held-out values landing inside the 95% band.

+33%Change by 2030TrendPercent 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 →
20Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
12–2895% 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 →
±30.6%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, American Robin in Wyoming is projected to rise about 33% by 2030 — from 15 in 2025 to a central estimate of 20 (95% range 12–28). A 5-year backtest shows a typical error of ±30.6%, with 100% of held-out values landing inside the 95% band.19682030
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 →
2026201228
2027201228
2028201228
2029201228
2030201228

American Robin Survey Routes in Wyoming

Routes recording American Robin 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 →
Lingle9620241980
Mammoth8220251982
Buckskin Mtn6920251980
Alpine6220251979
Colter Bay 26020252019
Yellowstone5920251987
Ryan Park5520251993
Crazy Woman5420241979
Moskee 25120212002
Ne Entrance4820251982
Moran4820162002
Ethete4620251991
Hayden Val4519861985
Cody4420251983
Moskee4420011980
Wilson4420251979
Fox Park4420251992
Hunter Peak4320251982
Colter Bay4219991968
Moskee 34220252022
Sundance4120251975
Savery4119951989
Fiddler Lk3620251979
Midvale3220251974
Seely3220001990

American Robin Population Trend in Other States

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

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.