BirdAnalyst
Species · California · BBS 2025 Release · 1966–2024

Hooded Oriole Population Trend in California

All statesGeneralists

Hooded Oriole in California has surged: up 368% on the route-weighted index since 1970.

+368%Since 1970
82Routes In State
56Years

Notable Hooded Oriole Trends in California

long arc increasecomputed index

Hooded Oriole has surged in California: up 368% on the route-weighted index since 1970.

Hooded Oriole Population Forecast in California

If the recent trend holds, Hooded Oriole in California is projected to fall about 45% by 2029 — from 0.95 in 2024 to a central estimate of 0.52 (95% range 0.18–0.86). A 5-year backtest shows a typical error of ±64%, with 0% of held-out values landing inside the 95% band.

-45%Change by 2029
0.52Projected 2029 index
0.18–0.8695% range
±64%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
20250.490.140.83
20260.490.150.84
20270.500.160.84
20280.510.170.85
20290.520.180.86

Hooded Oriole Survey Routes in California

Routes recording Hooded Oriole in California.
Harbor Lake 22620242014
San Ysidro1320191973
Oak Grove1220241969
Moreno1020242017
Willow Springs 21020232014
Orange Cove920012000
Santa Ynez720191972
S Catalina720222012
Coyote720241994
Parkfield620192017
Elsinore Mtn620241970
Cuyamaca Pk520242005
Foster Park419941968
Anza Borrego420241969
Ivanpah419941994
Mark West420241995
Jofegan 2320242024
Coachella Cn319881986
Creston319741972
Crescent Cty219741974
Morro Bay220191981
Poway219801973
Folsom220242003
Sisquoc220121971
Lake Cachuma219721972

Hooded Oriole Population Trend in Other States

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