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

American Robin Population Trend in Wyoming

All statesForest birds

American Robin in Wyoming has held roughly steady: down 1% on the route-weighted index since 1970.

-1%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 →
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 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 31% by 2029 — from 16 in 2024 to a central estimate of 21 (95% range 12–29). A 5-year backtest shows a typical error of ±32.7%, with 100% of held-out values landing inside the 95% band.

+31%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 →
21Projected 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 →
12–2995% 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 →
±32.7%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 31% by 2029 — from 16 in 2024 to a central estimate of 21 (95% range 12–29). A 5-year backtest shows a typical error of ±32.7%, 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 →
2025201228
2026201229
2027201229
2028201229
2029211229

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 →
Alpine11220241979
Lingle9620241980
Buckskin Mtn7320211980
Fox Park5520241992
Crazy Woman5420241979
Mammoth5320241982
Moskee 25120212002
Wilson4820241979
Moran4820162002
Yellowstone4820221987
Ne Entrance4620211982
Moskee 34520242022
Hayden Val4519861985
Moskee4420011980
Colter Bay4219991968
Riverside4220241968
Savery4119951989
Hunter Peak4020241982
Meeteetse3820241991
Colter Bay 23820242019
Savery 23720242007
Seely3220001990
Ryan Park3120231993
Sundance2920241975
Fletcher Pk2920241979

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 2026-05-22.