BirdAnalyst
Species · South Carolina · BBS 2026 Release · 1966–2025

American Crow Population Trend in South Carolina

All statesGeneralists

American Crow in South Carolina has increased: up 31% on the route-weighted index since 1968.

+31%Since 1968TrendPercent 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 →
51Routes 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 →
59YearsYears 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 Crow Trends in South CarolinaNotable 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 Crow in South Carolina. See the full index history below.

American Crow Population Forecast in South Carolina

If the recent trend holds, American Crow in South Carolina is projected to rise about 17% by 2030 — from 39 in 2025 to a central estimate of 45 (95% range 36–54). A 5-year backtest shows a typical error of ±20.4%, with 80% of held-out values landing inside the 95% band.

+17%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 →
45Projected 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 →
36–5495% 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 →
±20.4%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 Crow in South Carolina is projected to rise about 17% by 2030 — from 39 in 2025 to a central estimate of 45 (95% range 36–54). A 5-year backtest shows a typical error of ±20.4%, with 80% of held-out values landing inside the 95% band.19662030
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 →
2026443553
2027443554
2028453554
2029453654
2030453654

American Crow Survey Routes in South Carolina

Routes recording American Crow in South Carolina.
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 →
Barton Creek12820221967
Coward9820251966
Battlecreek7320251999
Green Sea6520252010
Dillon6420211970
Salem Xrd5820191982
Kingstree5720102010
Blacksburg5720131998
Landrum5619921972
New Holland5520251967
Rome5420251967
Chesnee5320151992
Campobello5220252010
Plum Branch5120251977
Salem4920252010
Owings 24820252005
Greenwood4720251998
Joanna4420251999
Prosperity4320241992
Adams Run4220251988
Holly Hill3720251972
Olar3520191998
Walterboro3420251970
Owings3220041992
Bishopville3120251970

American Crow Population Trend in Other States

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

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