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Species · Alaska · BBS 2025 Release · 1966–2024

American Robin Population Trend in Alaska

All statesForest birds

American Robin in Alaska has increased: up 37% on the route-weighted index since 1972.

+37%Since 1972TrendPercent 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 →
131Routes 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 →
51YearsYears 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 AlaskaNotable 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 Alaska. See the full index history below.

American Robin Population Forecast in Alaska

If the recent trend holds, American Robin in Alaska is projected to rise about 19% by 2029 — from 21 in 2024 to a central estimate of 25 (95% range 13–37). A 5-year backtest shows a typical error of ±15.2%, with 100% of held-out values landing inside the 95% band.

+19%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 →
25Projected 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 →
13–3795% 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 →
±15.2%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, American Robin in Alaska is projected to rise about 19% by 2029 — from 21 in 2024 to a central estimate of 25 (95% range 13–37). A 5-year backtest shows a typical error of ±15.2%, 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 →
2025241336
2026251336
2027251336
2028251336
2029251337

American Robin Survey Routes in Alaska

Routes recording American Robin in Alaska.
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 →
Haines7420241972
Kachemak7420241986
Tonsina6120212014
Wasilla5919831983
King Salmon5820241993
Ketchikan5620221971
Zimovia Strt5320241988
Anchor River5220241983
Ft. Richrdsn5120231994
Goose Bay4819821975
Delta4720241995
Alpenglow (Short)4620121994
Chicken4520241992
Tower Bluffs4120231994
Willow4120241993
Sourdough4120241983
Juneau3820241983
Hyder3820091994
Chistochina3720241990
Craig3720241983
Cottonwood3719901987
Copper River3620111993
Hope3520241985
Mcgrath3420221997
Kalifonsky3320231982

American Robin Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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