BirdAnalyst
Species · BCR 35 · BBS 2025 Release · 1966–2024

Cooper's Hawk In Chihuahuan Desert

All regionsChihuahuan DesertGeneralists

Cooper's Hawk in Chihuahuan Desert has declined: down 36% on the route-weighted index since 1980.

-36%Since 1980TrendPercent 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 →
20Routes 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 →
30YearsYears 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 Cooper's Hawk in Chihuahuan Desert. See the full index history below.

Cooper's Hawk In Chihuahuan Desert Population Forecast

If the recent trend holds, Cooper's Hawk in Chihuahuan Desert is projected to stay roughly flat through 2029, near 0.04 (95% range 0.00–0.11). A 5-year backtest shows a typical error of ±38.1%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029TrendPercent 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 →
0.04Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.1195% 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 →
±38.1%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, Cooper's Hawk in Chihuahuan Desert is projected to stay roughly flat through 2029, near 0.04 (95% range 0.00–0.11). A 5-year backtest shows a typical error of ±38.1%, with 100% of held-out values landing inside the 95% band.19752029
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 →
20250.040.000.11
20260.040.000.11
20270.040.000.11
20280.040.000.11
20290.040.000.11

Routes In Chihuahuan Desert

Routes recording Cooper's Hawk 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 →
LaborcitaNEW-MEXICO22014
ValentineTEXAS21980
PumpvilleTEXAS22011
San AntonioNEW-MEXICO11975
CarrizozoNEW-MEXICO12018
GageNEW-MEXICO12013
CloudcroftNEW-MEXICO12006
Capitan Mtn.NEW-MEXICO12011
Red RockNEW-MEXICO12024
PinonNEW-MEXICO12009
Hatchet PeakNEW-MEXICO11999
ColumbusNEW-MEXICO12019
EscondidaNEW-MEXICO12000
Lake ValleyNEW-MEXICO12016
AltudaTEXAS12004
Delaware CrkTEXAS12011
OzonaTEXAS12009
Bear MtnTEXAS12016
Devils R CynTEXAS12023
MarathonTEXAS12017

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.