BirdAnalyst
Species · BCR 32 · BBS 2025 Release · 1966–2024

Northern Mockingbird In Coastal California

All regionsCoastal CaliforniaGeneralists

Northern Mockingbird in Coastal California has increased: up 41% on the route-weighted index since 1970.

+41%Since 1970
106Routes In Region
56Years

Notable Signals

No notable trend signals for Northern Mockingbird in Coastal California. See the full index history below.

Forecast

If the recent trend holds, Northern Mockingbird in Coastal California is projected to fall about 22% by 2029 — from 12 in 2024 to a central estimate of 9.1 (95% range 4.7–13). A 5-year backtest shows a typical error of ±26.3%, with 100% of held-out values landing inside the 95% band.

-22%Change by 2029
9.1Projected 2029 index
4.7–1395% range
±26.3%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
20259.04.613
20269.04.613
20279.04.713
20289.04.713
20299.14.713

Routes In Coastal California

Routes recording Northern Mockingbird in Coastal California.
Harbor LakeCALIFORNIA1241991
S CatalinaCALIFORNIA922022
AuburnCALIFORNIA501980
ParkfieldCALIFORNIA422024
MorenoCALIFORNIA412024
GravesboroCALIFORNIA381995
Harbor Lake 2CALIFORNIA342024
WestleyCALIFORNIA332024
HughsonCALIFORNIA322024
Hollister 2CALIFORNIA292024
CollegevilleCALIFORNIA282004
RiovistaCALIFORNIA262024
MaricopaCALIFORNIA252024
Tres Pinos 2CALIFORNIA252011
TranquillityCALIFORNIA242024
ColmaCALIFORNIA231972
OrovilleCALIFORNIA232024
San YsidroCALIFORNIA222019
PowayCALIFORNIA201980
Mark WestCALIFORNIA202024
Collegeville 2CALIFORNIA202023
South LakeCALIFORNIA192006
Red BluffCALIFORNIA182024
Oak GroveCALIFORNIA182024
El ToroCALIFORNIA181999

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