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Species · BCR 5 · BBS 2025 Release · 1966–2024

Cooper's Hawk In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestGeneralists

Cooper's Hawk in Northern Pacific Rainforest has edged down: down 22% on the route-weighted index since 1973.

-22%Since 1973TrendPercent 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 →
75Routes 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 →
52YearsYears 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 Northern Pacific Rainforest. See the full index history below.

Cooper's Hawk In Northern Pacific Rainforest Population Forecast

If the recent trend holds, Cooper's Hawk in Northern Pacific Rainforest is projected to stay roughly flat through 2029, near 0.07 (95% range 0.01–0.14). A 5-year backtest shows a typical error of ±9.1%, with 100% of held-out values landing inside the 95% band.

+9%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 →
0.07Projected 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 →
0.01–0.1495% 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 →
±9.1%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 Northern Pacific Rainforest is projected to stay roughly flat through 2029, near 0.07 (95% range 0.01–0.14). A 5-year backtest shows a typical error of ±9.1%, 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 →
20250.070.010.13
20260.070.010.13
20270.070.010.13
20280.070.010.13
20290.070.010.14

Routes In Northern Pacific Rainforest

Routes recording Cooper's Hawk in Northern Pacific Rainforest.
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 →
LongvaleCALIFORNIA22011
Offield MtnCALIFORNIA21978
Days CreekOREGON21981
CanbyOREGON22019
Horse CreekCALIFORNIA12017
Crescent CtyCALIFORNIA11994
HoneydewCALIFORNIA12014
HolmesCALIFORNIA12024
HullvilleCALIFORNIA12012
Fish RockCALIFORNIA11995
Martins FyCALIFORNIA11984
Rio DellCALIFORNIA12011
Shasta LakeCALIFORNIA12012
NavarroCALIFORNIA12000
Junction CtyCALIFORNIA11972
OrleansCALIFORNIA11988
MccloudCALIFORNIA12012
Mt ShastaCALIFORNIA11993
AlderpointCALIFORNIA12012
LaytonvilleCALIFORNIA12013
Bodega BayCALIFORNIA11972
YrekaCALIFORNIA12007
WhiskeytownCALIFORNIA12013
DirigioCALIFORNIA12013
Burnt RanchCALIFORNIA12016

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