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

Pelagic Cormorant In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestWetland birds

Pelagic Cormorant in Northern Pacific Rainforest has collapsed: down 91% on the route-weighted index since 1970.

-91%Since 1970
15Routes In Region
56Years

Notable Signals

long arc declinecomputed index

Pelagic Cormorant has collapsed in Northern Pacific Rainforest: down 91% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Pelagic Cormorant in Northern Pacific Rainforest is projected to rise about 169% by 2029 — from 0.08 in 2024 to a central estimate of 0.21 (95% range 0.00–1.8). A 5-year backtest shows a typical error of ±534.8%, with 100% of held-out values landing inside the 95% band.

+169%Change by 2029
0.21Projected 2029 index
0.00–1.895% range
±534.8%Backtest error
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 index95% low95% high
20250.310.001.9
20260.290.001.8
20270.260.001.8
20280.240.001.8
20290.210.001.8

Routes In Northern Pacific Rainforest

Routes recording Pelagic Cormorant in Northern Pacific Rainforest.
WedderburnOREGON402019
LaytonvilleCALIFORNIA41991
Bodega BayCALIFORNIA42019
SitkaALASKA32024
NavarroCALIFORNIA31985
OzetteWASHINGTON31987
YakutatALASKA22024
HoneydewCALIFORNIA22016
Fish RockCALIFORNIA22014
TaholahWASHINGTON22022
HauserOREGON11976
Hazel CampOREGON12007
GlasgowOREGON12024
Port AngelesWASHINGTON12009
IlwacoWASHINGTON12018

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