BirdAnalyst
Species · BCR 16 · BBS 2026 Release · 1966–2025

American Crow In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauGeneralists

American Crow in Southern Rockies / Colorado Plateau has surged: up 100% on the route-weighted index since 1970.

+100%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 →
160Routes In RegionSurvey 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 SignalsNotable 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 →

American Crow has surged in Southern Rockies / Colorado Plateau: up 100% on the route-weighted index since 1970.

American Crow In Southern Rockies / Colorado Plateau Population Forecast

If the recent trend holds, American Crow in Southern Rockies / Colorado Plateau is projected to rise about 24% by 2030 — from 3.6 in 2025 to a central estimate of 4.5 (95% range 3.1–5.9). A 5-year backtest shows a typical error of ±23.1%, with 80% of held-out values landing inside the 95% band.

+24%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 →
4.5Projected 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 →
3.1–5.995% 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 →
±23.1%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 Southern Rockies / Colorado Plateau is projected to rise about 24% by 2030 — from 3.6 in 2025 to a central estimate of 4.5 (95% range 3.1–5.9). A 5-year backtest shows a typical error of ±23.1%, with 80% 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 →
20264.33.05.7
20274.43.05.8
20284.43.15.8
20294.53.15.9
20304.53.15.9

Routes In Southern Rockies / Colorado Plateau

Routes recording American Crow in Southern Rockies / Colorado Plateau.
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 →
Yellowjacket PassCOLORADO632025
YampaCOLORADO492023
Gold HillCOLORADO492012
Douglas PassCOLORADO462024
Stinking Lk.NEW-MEXICO381999
Mcphee Res.COLORADO302025
BicknellUTAH302019
De BequeCOLORADO262025
MonticelloUTAH242025
RadiumCOLORADO222013
Fox CreekCOLORADO182025
Steamboat L.COLORADO182025
AntonitoCOLORADO172004
Gold Hill 2COLORADO172025
Heeney 2COLORADO172025
Ojo SarcoNEW-MEXICO162025
BufordCOLORADO142025
Wilson CreekCOLORADO142025
Angel FireNEW-MEXICO142002
ColonaCOLORADO132014
Cheesman LkCOLORADO122025
MoffatCOLORADO122024
TarryallCOLORADO122025
AnimasCOLORADO122004
DulceNEW-MEXICO122025

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