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

Peregrine Falcon In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestGeneralists

Peregrine Falcon in Northern Pacific Rainforest has held roughly steady: down 6% on the route-weighted index since 1977.

-6%Since 1977TrendPercent 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 →
29Routes 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 →
34YearsYears 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 Peregrine Falcon in Northern Pacific Rainforest. See the full index history below.

Peregrine Falcon In Northern Pacific Rainforest Population Forecast

If the recent trend holds, Peregrine Falcon in Northern Pacific Rainforest is projected to stay roughly flat through 2029, near 0.04 (95% range 0.00–0.08). A 5-year backtest shows a typical error of ±60.3%, 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 →
0.00–0.0895% 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 →
±60.3%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, Peregrine Falcon in Northern Pacific Rainforest is projected to stay roughly flat through 2029, near 0.04 (95% range 0.00–0.08). A 5-year backtest shows a typical error of ±60.3%, with 100% of held-out values landing inside the 95% band.19692029
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 →
20250.040.000.08
20260.040.000.08
20270.040.000.08
20280.040.000.08
20290.040.000.08

Routes In Northern Pacific Rainforest

Routes recording Peregrine Falcon 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 →
Bodega BayCALIFORNIA42021
Blue RiverOREGON32023
Nicolai Mtn.OREGON22005
Warner Mtn.OREGON22015
HainesALASKA12024
Sheep MtnALASKA12011
Crescent CtyCALIFORNIA12022
HoneydewCALIFORNIA11969
HullvilleCALIFORNIA12017
Shasta LakeCALIFORNIA11991
LongvaleCALIFORNIA12021
OrleansCALIFORNIA12011
AlderpointCALIFORNIA11985
YrekaCALIFORNIA12017
Orleans 2CALIFORNIA12014
DaytonOREGON12005
GarfieldOREGON12015
ElktonOREGON12022
ClearwaterOREGON12011
Hazel CampOREGON12018
GlasgowOREGON12022
Emigrant Lake 2OREGON12007
Port AngelesWASHINGTON12014
PackwoodWASHINGTON12017
RaymondWASHINGTON12010

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