BirdAnalyst
Species · BCR 17 · BBS 2026 Release · 1966–2025

Common Raven In Badlands and Prairies

All regionsBadlands and PrairiesGeneralists

Common Raven in Badlands and Prairies has surged: up 55× on the route-weighted index since 1972.

55×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 →
46Routes 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 →
42YearsYears 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 →

No notable trend signals for Common Raven in Badlands and Prairies. See the full index history below.

Common Raven In Badlands and Prairies Population Forecast

If the recent trend holds, Common Raven in Badlands and Prairies is projected to fall about 29% by 2030 — from 1.7 in 2025 to a central estimate of 1.2 (95% range 0.33–2.1). A 5-year backtest shows a typical error of ±55.2%, with 40% of held-out values landing inside the 95% band.

-29%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 →
1.2Projected 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 →
0.33–2.195% 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 →
±55.2%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, Common Raven in Badlands and Prairies is projected to fall about 29% by 2030 — from 1.7 in 2025 to a central estimate of 1.2 (95% range 0.33–2.1). A 5-year backtest shows a typical error of ±55.2%, with 40% 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 →
20261.10.222.0
20271.20.242.1
20281.20.272.1
20291.20.302.1
20301.20.332.1

Routes In Badlands and Prairies

Routes recording Common Raven in Badlands and Prairies.
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 →
KayceeWYOMING452025
BrusettMONTANA102024
WinnettMONTANA102025
RoundupMONTANA102025
Wheat BasinMONTANA102025
ShawmutMONTANA92025
LeroyMONTANA82025
BucknumWYOMING82024
Maynard CouleeMONTANA72025
CusterMONTANA72022
Chuffey SpringMONTANA72024
Flatwillow 2MONTANA62023
Coleman CouleeMONTANA42024
Winifred 2MONTANA42025
Custer 2MONTANA42025
DwyerWYOMING42025
DaytonWYOMING42025
HighwoodMONTANA32025
JordanMONTANA32024
Two DotMONTANA32025
IngomarMONTANA32025
Jordan SouthMONTANA32025
SeelyWYOMING32000
RoyMONTANA22025
ForsythMONTANA22023

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