BirdAnalyst
Species · BCR 16 · BBS 2025 Release · 1966–2024

Cooper's Hawk In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauGeneralists

Cooper's Hawk in Southern Rockies / Colorado Plateau has declined: down 31% on the route-weighted index since 1974.

-31%Since 1974TrendPercent 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 →
136Routes 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 →
49YearsYears 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 Southern Rockies / Colorado Plateau. See the full index history below.

Cooper's Hawk In Southern Rockies / Colorado Plateau Population Forecast

If the recent trend holds, Cooper's Hawk in Southern Rockies / Colorado Plateau is projected to stay roughly flat through 2029, near 0.09 (95% range 0.03–0.15). A 5-year backtest shows a typical error of ±49.9%, with 100% of held-out values landing inside the 95% band.

+0%Change 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 →
0.09Projected 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 →
0.03–0.1595% 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 →
±49.9%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 Southern Rockies / Colorado Plateau is projected to stay roughly flat through 2029, near 0.09 (95% range 0.03–0.15). A 5-year backtest shows a typical error of ±49.9%, with 100% of held-out values landing inside the 95% band.19712029
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 →
20250.080.020.14
20260.080.020.14
20270.090.020.14
20280.090.020.14
20290.090.030.15

Routes In Southern Rockies / Colorado Plateau

Routes recording Cooper's Hawk 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 →
FerronUTAH32018
House RockARIZONA21981
ToroweapARIZONA22019
Pagosa SpgsCOLORADO21978
De BequeCOLORADO22021
GardnerCOLORADO22011
TorreonNEW-MEXICO22001
La PlataNEW-MEXICO22008
La Plata 2NEW-MEXICO22016
ShivwitzUTAH22018
Black MesaARIZONA11994
Rose WellsARIZONA11974
SawmillARIZONA12006
PageARIZONA12012
GreasewoodARIZONA12003
Peach SpringARIZONA12006
YampaCOLORADO12016
HarmonyCOLORADO12022
Douglas PassCOLORADO12024
BufordCOLORADO12017
AspenCOLORADO12024
Cheesman LkCOLORADO12011
DeltaCOLORADO12021
ColonaCOLORADO12012
ParlinCOLORADO12011

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