BirdAnalyst
Species · BCR 33 · BBS 2026 Release · 1966–2025

Common Raven In Sonoran and Mojave Deserts

All regionsSonoran and Mojave DesertsGeneralists

Common Raven in Sonoran and Mojave Deserts has held roughly steady: up 7% on the route-weighted index since 1970.

+7%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 →
86Routes 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 →

No notable trend signals for Common Raven in Sonoran and Mojave Deserts. See the full index history below.

Common Raven In Sonoran and Mojave Deserts Population Forecast

If the recent trend holds, Common Raven in Sonoran and Mojave Deserts is projected to fall about 18% by 2030 — from 11 in 2025 to a central estimate of 8.8 (95% range 3.3–14). A 5-year backtest shows a typical error of ±29%, with 100% of held-out values landing inside the 95% band.

-18%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 →
8.8Projected 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 →
3.3–1495% 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 →
±29%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 Sonoran and Mojave Deserts is projected to fall about 18% by 2030 — from 11 in 2025 to a central estimate of 8.8 (95% range 3.3–14). A 5-year backtest shows a typical error of ±29%, with 100% 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 →
20268.73.214
20278.73.214
20288.73.214
20298.83.314
20308.83.314

Routes In Sonoran and Mojave Deserts

Routes recording Common Raven in Sonoran and Mojave Deserts.
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 →
Willow SpgsCALIFORNIA901981
Kelso ValleyCALIFORNIA482025
Calif CityCALIFORNIA452015
BarstowCALIFORNIA411998
PearblossomCALIFORNIA382025
Haiwee ResCALIFORNIA362005
Lucerne ValCALIFORNIA352025
Willow Springs 2CALIFORNIA342025
Cutter 2ARIZONA262018
OnyxCALIFORNIA262015
TronaCALIFORNIA251997
Lone PineCALIFORNIA212025
InyokernCALIFORNIA192024
Alamo Res.ARIZONA182025
Organ PipeARIZONA182023
Ajo 2ARIZONA172022
Anza BorregoCALIFORNIA172025
Joshua Tree 2CALIFORNIA172025
LukevilleARIZONA141981
LenwoodCALIFORNIA132012
AjoARIZONA122008
Cactus ForestARIZONA122025
IvanpahCALIFORNIA92019
Coachella CnCALIFORNIA92013
CottonwoodCALIFORNIA92019

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