BirdAnalyst
Species · BCR 35 · BBS 2026 Release · 1966–2025

Common Raven In Chihuahuan Desert

All regionsChihuahuan DesertGeneralists

Common Raven in Chihuahuan Desert has surged: up 277% on the route-weighted index since 1969.

+277%Since 1969TrendPercent 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 →
43Routes 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 →
58YearsYears 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 →

Common Raven has surged in Chihuahuan Desert: up 277% on the route-weighted index since 1969.

Common Raven In Chihuahuan Desert Population Forecast

If the recent trend holds, Common Raven in Chihuahuan Desert is projected to stay roughly flat through 2030, near 3.0 (95% range 1.3–4.7). A 5-year backtest shows a typical error of ±16.8%, with 100% of held-out values landing inside the 95% band.

+0%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 →
3.0Projected 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 →
1.3–4.795% 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 →
±16.8%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 Chihuahuan Desert is projected to stay roughly flat through 2030, near 3.0 (95% range 1.3–4.7). A 5-year backtest shows a typical error of ±16.8%, with 100% of held-out values landing inside the 95% band.19672030
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 →
20262.91.24.6
20272.91.24.6
20282.91.34.6
20293.01.34.7
20303.01.34.7

Routes In Chihuahuan Desert

Routes recording Common Raven in Chihuahuan Desert.
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 →
PinonNEW-MEXICO192024
Red RockNEW-MEXICO162025
CarrizozoNEW-MEXICO142025
Laborcita 2NEW-MEXICO112025
EscondidaNEW-MEXICO102025
Bear MtnTEXAS92025
CloudcroftNEW-MEXICO82025
Bitter LakeNEW-MEXICO62024
Sunshine WllNEW-MEXICO62024
Capitan Mtn.NEW-MEXICO52017
LongfellowTEXAS52025
MarathonTEXAS52025
Ft. DavisTEXAS52025
PresidioTEXAS42025
LaborcitaNEW-MEXICO31992
QueenNEW-MEXICO32021
Hatchet PeakNEW-MEXICO32025
ComstockTEXAS32025
AltudaTEXAS32023
ValentineTEXAS31986
OzonaTEXAS32022
ToyahvaleTEXAS32025
San AntonioNEW-MEXICO21974
JornadaNEW-MEXICO22025
EngleNEW-MEXICO21989

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