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

Common Raven In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestGeneralists

Common Raven in Northern Pacific Rainforest has increased: up 48% on the route-weighted index since 1970.

+48%Since 1970TrendPercent 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 →
161Routes 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 →
56YearsYears 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 Common Raven in Northern Pacific Rainforest. See the full index history below.

Forecast

If the recent trend holds, Common Raven in Northern Pacific Rainforest is projected to rise about 12% by 2029 — from 6.8 in 2024 to a central estimate of 7.6 (95% range 5.7–9.4). A 5-year backtest shows a typical error of ±11.8%, with 80% of held-out values landing inside the 95% band.

+12%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 →
7.6Projected 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 →
5.7–9.495% 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 →
±11.8%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 Northern Pacific Rainforest is projected to rise about 12% by 2029 — from 6.8 in 2024 to a central estimate of 7.6 (95% range 5.7–9.4). A 5-year backtest shows a typical error of ±11.8%, with 80% of held-out values landing inside the 95% band.19682029
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 →
20257.35.59.1
20267.45.59.2
20277.45.69.3
20287.55.79.3
20297.65.79.4

Routes In Northern Pacific Rainforest

Routes recording Common Raven 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 →
Sitka (Short)ALASKA691992
McminnvilleOREGON342024
Juneau AltALASKA321986
JuneauALASKA302024
NavarroCALIFORNIA272011
AlderpointCALIFORNIA252012
Thorne Bay 2ALASKA242024
UkiahCALIFORNIA242011
KetchikanALASKA232022
SitkaALASKA222024
Bodega BayCALIFORNIA222021
RaymondWASHINGTON222021
RainierWASHINGTON222019
CraigALASKA212024
Thorne BayALASKA212012
South ElmaWASHINGTON192024
Pe EllWASHINGTON192023
Fish RockCALIFORNIA182014
Rio DellCALIFORNIA182012
LaytonvilleCALIFORNIA172024
HoneydewCALIFORNIA162017
HolmesCALIFORNIA152024
Burnt RanchCALIFORNIA152016
Redwood N.P.CALIFORNIA152010
MccloudCALIFORNIA142021

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